{"items":[{"id":"NVI-00003550","kind":"vulnerability","title":"Stored XSS in October","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-w4pj-7p68-3vgv","CVE-2020-11083"],"plain_summary":"OSV carries this publisher advisory for october/backend. 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 1.0.466 for october/backend. Confirm the publisher’s latest guidance.","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"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-47ccab117bd363d7e4a2d6fb4ae05ef6"],"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":"2026-06-17T02:49:00.953Z","value":"3.5 LOW (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"},{"kind":"CVSS","as_of":"2026-06-17T02:49:00.953Z","value":"3.5 LOW (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"},{"kind":"CVSS","as_of":"2026-06-17T02:49:00.953Z","value":"4.8 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"1.148%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.66818. Missing scores are unknown.","source_id":"sr-47ccab117bd363d7e4a2d6fb4ae05ef6"}],"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-427a3526572ef72e41154e20e36c9ce2","url":"https://github.com/advisories/GHSA-w4pj-7p68-3vgv","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w4pj-7p68-3vgv","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.382Z"},{"id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11083","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-11083","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:06:59.494Z"},{"id":"sr-47ccab117bd363d7e4a2d6fb4ae05ef6","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-2020-11083","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"technology":"october/backend","known_exclusions":[],"conditions_summary":"### Impact\nA user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field.\n\n### Patches\nIssue has been patched in Build 466 (v1.0.466) & RainLab.Blog v1.4.1 by restricting the ability to store JS in markdown to only users that have been explicitly granted the `backend.allow_unsafe_markdown` permission.\n\n### Workarounds\nApply https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746 & https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94 to your installation manually if unable to upgrade to Build 466 or v1.4.1 of RainLab.Blog (if using that plugin).\n\n### References\nReported by Sivanesh Ashok\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at hello@octobercms.com\n\n### Threat assessment:\n","public_affected_ranges":["ECOSYSTEM: introduced 1.0.319; fixed 1.0.466"]}],"null_published_at":"2026-10-31T23:18:17.254Z","source_updated_at":"2026-09-10T03:48:51.663Z","source_disclosed_at":"2020-08-05T14:52:44.000Z","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":"2026-10-31T21:42:41.382Z"},{"id":"NVI-00003550","kind":"vulnerability","title":"Stored XSS in October","revision":2,"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-w4pj-7p68-3vgv","CVE-2020-11083"],"plain_summary":"OSV carries this publisher advisory for october/backend. 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 1.0.466 for october/backend. Confirm the publisher’s latest guidance.","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"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-22e1fa05c7b0a37c47ec45d0890ead6c"],"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":"2026-06-17T02:49:00.953Z","value":"3.5 LOW (2.0)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"},{"kind":"CVSS","as_of":"2026-06-17T02:49:00.953Z","value":"3.5 LOW (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"},{"kind":"CVSS","as_of":"2026-06-17T02:49:00.953Z","value":"4.8 MEDIUM (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c"}],"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-427a3526572ef72e41154e20e36c9ce2","url":"https://github.com/advisories/GHSA-w4pj-7p68-3vgv","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w4pj-7p68-3vgv","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.382Z"},{"id":"sr-22e1fa05c7b0a37c47ec45d0890ead6c","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11083","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2020-11083","publisher":"NIST National Vulnerability Database","observed_at":"2026-10-31T22:06:59.494Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"technology":"october/backend","known_exclusions":[],"conditions_summary":"### Impact\nA user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field.\n\n### Patches\nIssue has been patched in Build 466 (v1.0.466) & RainLab.Blog v1.4.1 by restricting the ability to store JS in markdown to only users that have been explicitly granted the `backend.allow_unsafe_markdown` permission.\n\n### Workarounds\nApply https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746 & https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94 to your installation manually if unable to upgrade to Build 466 or v1.4.1 of RainLab.Blog (if using that plugin).\n\n### References\nReported by Sivanesh Ashok\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at hello@octobercms.com\n\n### Threat assessment:\n","public_affected_ranges":["ECOSYSTEM: introduced 1.0.319; fixed 1.0.466"]}],"null_published_at":"2026-10-31T22:27:03.545Z","source_updated_at":"2026-09-10T03:48:51.663Z","source_disclosed_at":"2020-08-05T14:52:44.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:41.382Z"},{"id":"NVI-00003550","kind":"vulnerability","title":"Stored XSS in October","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w4pj-7p68-3vgv","CVE-2020-11083"],"plain_summary":"OSV carries this publisher advisory for october/backend. 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 1.0.466 for october/backend. Confirm the publisher’s latest guidance.","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"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-427a3526572ef72e41154e20e36c9ce2","url":"https://github.com/advisories/GHSA-w4pj-7p68-3vgv","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-w4pj-7p68-3vgv","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-427a3526572ef72e41154e20e36c9ce2"],"technology":"october/backend","known_exclusions":[],"conditions_summary":"### Impact\nA user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field.\n\n### Patches\nIssue has been patched in Build 466 (v1.0.466) & RainLab.Blog v1.4.1 by restricting the ability to store JS in markdown to only users that have been explicitly granted the `backend.allow_unsafe_markdown` permission.\n\n### Workarounds\nApply https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746 & https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94 to your installation manually if unable to upgrade to Build 466 or v1.4.1 of RainLab.Blog (if using that plugin).\n\n### References\nReported by Sivanesh Ashok\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at hello@octobercms.com\n\n### Threat assessment:\n","public_affected_ranges":["ECOSYSTEM: introduced 1.0.319; fixed 1.0.466"]}],"null_published_at":"2026-10-31T22:12:48.021Z","source_updated_at":"2026-09-10T03:48:51.663Z","source_disclosed_at":"2020-08-05T14:52:44.000Z","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":"2026-10-31T21:42:41.382Z"}],"next_cursor":null,"snapshot_revision":"42594"}