{"items":[{"id":"NVI-00004996","kind":"vulnerability","title":"Concrete CMS is vulnerable to Stored XSS via page name in the Atomik theme","revision":4,"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-q9fm-mpg8-8jqm","CVE-2026-8353"],"plain_summary":"GitHub lists this reviewed advisory for concrete5/concrete5. 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-1a6a3716f1ad77368cc9ed8378dd4815"],"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 9.5.1 for concrete5/concrete5. Confirm the publisher’s latest guidance.","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"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":"2026-07-23T16:10:00.137Z","value":"4.8 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-14b6a115540669f789f10231eac4703a"},{"kind":"CVSS","as_of":"2026-07-23T16:10:00.137Z","value":"2.1 LOW (4.0)","meaning":"ff5b8ace-8b95-4078-9743-eac1ca5451de severity; no combined Null risk score.","source_id":"sr-14b6a115540669f789f10231eac4703a"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.149%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04086. Missing scores are unknown.","source_id":"sr-1a6a3716f1ad77368cc9ed8378dd4815"}],"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-73f749218532bc06dc56edc106f871a0","url":"https://github.com/advisories/GHSA-q9fm-mpg8-8jqm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q9fm-mpg8-8jqm","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T11:39:31.286Z"},{"id":"sr-7c8ccd5fc06b32bd6598530aadeaf5b3","url":"https://github.com/advisories/GHSA-q9fm-mpg8-8jqm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q9fm-mpg8-8jqm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:31.001Z"},{"id":"sr-14b6a115540669f789f10231eac4703a","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8353","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-8353","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-1a6a3716f1ad77368cc9ed8378dd4815","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-2026-8353","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.386Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-73f749218532bc06dc56edc106f871a0"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. Thanks Yonatan Drori (Tenzai) for reporting.","public_affected_ranges":[">= 9.0.0RC.1, < 9.5.1"]},{"certainty":"source_listed","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. Thanks Yonatan Drori (Tenzai) for reporting.","public_affected_ranges":["ECOSYSTEM: introduced 9.0.0RC.1; fixed 9.5.1"]}],"null_published_at":"2026-11-05T19:10:21.475Z","source_updated_at":"2026-06-29T23:04:43.000Z","source_disclosed_at":"2026-05-26T13:30:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:31.001Z"},{"id":"NVI-00004996","kind":"vulnerability","title":"Concrete CMS is vulnerable to Stored XSS via page name in the Atomik theme","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-q9fm-mpg8-8jqm","CVE-2026-8353"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5. 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 9.5.1 for concrete5/concrete5. Confirm the publisher’s latest guidance.","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"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-1a6a3716f1ad77368cc9ed8378dd4815"],"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":"2026-07-23T16:10:00.137Z","value":"4.8 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-14b6a115540669f789f10231eac4703a"},{"kind":"CVSS","as_of":"2026-07-23T16:10:00.137Z","value":"2.1 LOW (4.0)","meaning":"ff5b8ace-8b95-4078-9743-eac1ca5451de severity; no combined Null risk score.","source_id":"sr-14b6a115540669f789f10231eac4703a"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.149%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04086. Missing scores are unknown.","source_id":"sr-1a6a3716f1ad77368cc9ed8378dd4815"}],"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-7c8ccd5fc06b32bd6598530aadeaf5b3","url":"https://github.com/advisories/GHSA-q9fm-mpg8-8jqm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q9fm-mpg8-8jqm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:31.001Z"},{"id":"sr-14b6a115540669f789f10231eac4703a","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8353","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-8353","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:58.008Z"},{"id":"sr-1a6a3716f1ad77368cc9ed8378dd4815","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-2026-8353","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.386Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. Thanks Yonatan Drori (Tenzai) for reporting.","public_affected_ranges":["ECOSYSTEM: introduced 9.0.0RC.1; fixed 9.5.1"]}],"null_published_at":"2026-11-01T14:34:07.531Z","source_updated_at":"2026-09-10T03:50:47.219Z","source_disclosed_at":"2026-05-26T13:30:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:31.001Z"},{"id":"NVI-00004996","kind":"vulnerability","title":"Concrete CMS is vulnerable to Stored XSS via page name in the Atomik theme","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q9fm-mpg8-8jqm","CVE-2026-8353"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5. 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 9.5.1 for concrete5/concrete5. Confirm the publisher’s latest guidance.","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"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-1a6a3716f1ad77368cc9ed8378dd4815"],"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":"0.149%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04086. Missing scores are unknown.","source_id":"sr-1a6a3716f1ad77368cc9ed8378dd4815"}],"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-7c8ccd5fc06b32bd6598530aadeaf5b3","url":"https://github.com/advisories/GHSA-q9fm-mpg8-8jqm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q9fm-mpg8-8jqm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:31.001Z"},{"id":"sr-1a6a3716f1ad77368cc9ed8378dd4815","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-2026-8353","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.386Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. Thanks Yonatan Drori (Tenzai) for reporting.","public_affected_ranges":["ECOSYSTEM: introduced 9.0.0RC.1; fixed 9.5.1"]}],"null_published_at":"2026-10-31T22:27:09.600Z","source_updated_at":"2026-09-10T03:50:47.219Z","source_disclosed_at":"2026-05-26T13:30:17.000Z","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":"2026-10-31T21:42:31.001Z"},{"id":"NVI-00004996","kind":"vulnerability","title":"Concrete CMS is vulnerable to Stored XSS via page name in the Atomik theme","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q9fm-mpg8-8jqm","CVE-2026-8353"],"plain_summary":"OSV carries this publisher advisory for concrete5/concrete5. 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 9.5.1 for concrete5/concrete5. Confirm the publisher’s latest guidance.","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"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-7c8ccd5fc06b32bd6598530aadeaf5b3","url":"https://github.com/advisories/GHSA-q9fm-mpg8-8jqm","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-q9fm-mpg8-8jqm","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:31.001Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-7c8ccd5fc06b32bd6598530aadeaf5b3"],"technology":"concrete5/concrete5","known_exclusions":[],"conditions_summary":"Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XSS via page name in the Atomik theme. A rogue editor can inject arbitrary JavaScript that executes in the context of any authenticated user visiting the affected account pages. This can lead to session hijacking, credential theft, malicious actions performed on behalf of users, and potential privilege escalation. Thanks Yonatan Drori (Tenzai) for reporting.","public_affected_ranges":["ECOSYSTEM: introduced 9.0.0RC.1; fixed 9.5.1"]}],"null_published_at":"2026-10-31T22:12:57.150Z","source_updated_at":"2026-09-10T03:50:47.219Z","source_disclosed_at":"2026-05-26T13:30:17.000Z","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":"2026-10-31T21:42:31.001Z"}],"next_cursor":null,"snapshot_revision":"42594"}