{"items":[{"id":"NVI-00008187","kind":"vulnerability","title":"Kirby: Self cross-site scripting (self-XSS) in the writer field","revision":5,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-rhj6-r49h-5932","CVE-2026-49276"],"plain_summary":"GitHub lists this reviewed advisory for getkirby/cms, getkirby/cms. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-05920dd84c715e4b51aaa101e6d11f19"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 4.9.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-25T17:10:00.197Z","value":"7.4 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-23b527cb12451867bb52251f67db7800"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.432%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.37669. Missing scores are unknown.","source_id":"sr-05920dd84c715e4b51aaa101e6d11f19"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-30ec517a6a435ba0d9d7227ca0c63e74","url":"https://github.com/advisories/GHSA-rhj6-r49h-5932","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rhj6-r49h-5932","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T07:20:10.578Z"},{"id":"sr-f9a708d9217f8e9e54f0229a8660b50f","url":"https://github.com/advisories/GHSA-rhj6-r49h-5932","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rhj6-r49h-5932","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.363Z"},{"id":"sr-23b527cb12451867bb52251f67db7800","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49276","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-49276","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:35.055Z"},{"id":"sr-05920dd84c715e4b51aaa101e6d11f19","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-49276","publisher":"FIRST EPSS","observed_at":"2026-11-06T00:24:57.660Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-30ec517a6a435ba0d9d7227ca0c63e74"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["<= 4.9.3"]},{"certainty":"source_listed","source_ids":["sr-30ec517a6a435ba0d9d7227ca0c63e74"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":[">= 5.0.0-alpha.1, <= 5.4.3"]},{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.9.4"]},{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.1; fixed 5.4.4"]}],"null_published_at":"2026-11-07T07:07:46.832Z","source_updated_at":"2026-06-18T15:04:43.000Z","source_disclosed_at":"2026-06-18T15:04:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:41.363Z"},{"id":"NVI-00008187","kind":"vulnerability","title":"Kirby: Self cross-site scripting (self-XSS) in the writer field","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-rhj6-r49h-5932","CVE-2026-49276"],"plain_summary":"OSV carries this publisher advisory for getkirby/cms, getkirby/cms. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-424f9b973665e6af9417edcbb033a832"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-25T17:10:00.197Z","value":"7.4 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-23b527cb12451867bb52251f67db7800"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.432%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.37537. Missing scores are unknown.","source_id":"sr-424f9b973665e6af9417edcbb033a832"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f9a708d9217f8e9e54f0229a8660b50f","url":"https://github.com/advisories/GHSA-rhj6-r49h-5932","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rhj6-r49h-5932","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.363Z"},{"id":"sr-23b527cb12451867bb52251f67db7800","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49276","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-49276","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T22:35:35.055Z"},{"id":"sr-424f9b973665e6af9417edcbb033a832","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-49276","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.9.4"]},{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.1; fixed 5.4.4"]}],"null_published_at":"2026-11-04T10:04:35.920Z","source_updated_at":"2026-09-10T03:50:50.406Z","source_disclosed_at":"2026-06-18T15:04:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:41.363Z"},{"id":"NVI-00008187","kind":"vulnerability","title":"Kirby: Self cross-site scripting (self-XSS) in the writer field","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rhj6-r49h-5932","CVE-2026-49276"],"plain_summary":"OSV carries this publisher advisory for getkirby/cms, getkirby/cms. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-424f9b973665e6af9417edcbb033a832"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.432%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.37537. Missing scores are unknown.","source_id":"sr-424f9b973665e6af9417edcbb033a832"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f9a708d9217f8e9e54f0229a8660b50f","url":"https://github.com/advisories/GHSA-rhj6-r49h-5932","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rhj6-r49h-5932","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.363Z"},{"id":"sr-424f9b973665e6af9417edcbb033a832","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-49276","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.9.4"]},{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.1; fixed 5.4.4"]}],"null_published_at":"2026-10-31T23:18:17.216Z","source_updated_at":"2026-09-10T03:50:50.406Z","source_disclosed_at":"2026-06-18T15:04:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:42:41.363Z"},{"id":"NVI-00008187","kind":"vulnerability","title":"Kirby: Self cross-site scripting (self-XSS) in the writer field","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rhj6-r49h-5932","CVE-2026-49276"],"plain_summary":"OSV carries this publisher advisory for getkirby/cms, getkirby/cms. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.9.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.4.4 for getkirby/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-f9a708d9217f8e9e54f0229a8660b50f","url":"https://github.com/advisories/GHSA-rhj6-r49h-5932","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rhj6-r49h-5932","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.363Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 4.9.4"]},{"certainty":"source_listed","source_ids":["sr-f9a708d9217f8e9e54f0229a8660b50f"],"technology":"getkirby/cms","known_exclusions":[],"conditions_summary":"### TL;DR\n\nThis vulnerability affects Kirby sites that use the writer field in any blueprint.\n\nIt was possible to include a scripting link as the target of a link (or email link). This link target would then be clickable by the user who entered it.\n\nA successful attack commonly requires knowledge of the content structure by the attacker as well as social engineering of a user with access to the Panel. The attack *cannot* be automated.\n\nIn Kirby's default configuration, the vulnerability is limited to self-XSS and *cannot* directly affect other users or visitors of the site. Panel plugins that are directly using the `` component may also be affected by stored XSS if they don't sanitize the resulting HTML before saving it to the content.\n\n**This vulnerability is of high severity for affected sites.**\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows attackers to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can, for example, trigger requests to Kirby's API with the permissions of the victim.\n\n*Self* cross-site scripting (self-XSS) typically involves a user inad","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.1; fixed 5.4.4"]}],"null_published_at":"2026-10-31T22:13:22.833Z","source_updated_at":"2026-09-10T03:50:50.406Z","source_disclosed_at":"2026-06-18T15:04:41.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:42:41.363Z"}],"next_cursor":null,"snapshot_revision":"42594"}