{"items":[{"id":"NVI-00007041","kind":"vulnerability","title":"Winter: CSRF through AJAX handler names reachable as backend page actions","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p2ch-c2c3-4xm5"],"plain_summary":"GitHub lists this reviewed advisory for winter/wn-backend-module. 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-25ad465ec92e4d78aa434b291dc80c18"],"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 1.2.14 for winter/wn-backend-module. Confirm the publisher’s latest guidance.","source_ids":["sr-cc6793603aa9d49daa1b83ef3430775c"],"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":"2026-08-20T18:45:00.000Z","value":"6.1 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-25ad465ec92e4d78aa434b291dc80c18"}],"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-25ad465ec92e4d78aa434b291dc80c18","url":"https://github.com/advisories/GHSA-p2ch-c2c3-4xm5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-p2ch-c2c3-4xm5","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:46.713Z"},{"id":"sr-cc6793603aa9d49daa1b83ef3430775c","url":"https://github.com/advisories/GHSA-p2ch-c2c3-4xm5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-p2ch-c2c3-4xm5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.985Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-25ad465ec92e4d78aa434b291dc80c18"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS allow a backend AJAX handler to be invoked by a plain top-level `GET` navigation with no CSRF token. `Backend\\Classes\\Controller::actionExists()` accepted any public method on a controller as a page action, so handler-shaped names were never reserved from URL dispatch: an authenticated and authorized request to `/backend/system/eventlogs/index_onEmptyLog` reached the handler of the same name and truncated the system event log. Backend paths are routed through `Route::any`, and CSRF validation is skipped for `HEAD`, `GET` and `OPTIONS` requests.\n\nThe default `SameSite=Lax` session cookie is sent on top-level cross-site navigation, so a link on an attacker-controlled page is sufficient — no form, no script and no token. Handler arguments are taken from URL path segments, so the attacker also chooses the target record. Affected handlers across the `backend`, `cms` and `system` modules cover log truncation, resetting settings to their defaults, altering backend user state, and deleting CMS templates. None of them disclose data to the attacker or write attacker-controlled content, so the impact is destructive and state-changing rather than con","public_affected_ranges":[">= 1.0.319, < 1.2.14"]},{"certainty":"source_listed","source_ids":["sr-cc6793603aa9d49daa1b83ef3430775c"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS allow a backend AJAX handler to be invoked by a plain top-level `GET` navigation with no CSRF token. `Backend\\Classes\\Controller::actionExists()` accepted any public method on a controller as a page action, so handler-shaped names were never reserved from URL dispatch: an authenticated and authorized request to `/backend/system/eventlogs/index_onEmptyLog` reached the handler of the same name and truncated the system event log. Backend paths are routed through `Route::any`, and CSRF validation is skipped for `HEAD`, `GET` and `OPTIONS` requests.\n\nThe default `SameSite=Lax` session cookie is sent on top-level cross-site navigation, so a link on an attacker-controlled page is sufficient — no form, no script and no token. Handler arguments are taken from URL path segments, so the attacker also chooses the target record. Affected handlers across the `backend`, `cms` and `system` modules cover log truncation, resetting settings to their defaults, altering backend user state, and deleting CMS templates. None of them disclose data to the attacker or write attacker-controlled content, so the impact is destructive and state-changing rather than con","public_affected_ranges":["ECOSYSTEM: introduced 1.0.319; fixed 1.2.14"]}],"null_published_at":"2026-11-02T10:00:37.191Z","source_updated_at":"2026-08-20T18:45:00.000Z","source_disclosed_at":"2026-08-20T18:44:59.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.985Z"},{"id":"NVI-00007041","kind":"vulnerability","title":"Winter: CSRF through AJAX handler names reachable as backend page actions","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-p2ch-c2c3-4xm5"],"plain_summary":"OSV carries this publisher advisory for winter/wn-backend-module. 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 1.2.14 for winter/wn-backend-module. Confirm the publisher’s latest guidance.","source_ids":["sr-cc6793603aa9d49daa1b83ef3430775c"],"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-cc6793603aa9d49daa1b83ef3430775c","url":"https://github.com/advisories/GHSA-p2ch-c2c3-4xm5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-p2ch-c2c3-4xm5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.985Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cc6793603aa9d49daa1b83ef3430775c"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS allow a backend AJAX handler to be invoked by a plain top-level `GET` navigation with no CSRF token. `Backend\\Classes\\Controller::actionExists()` accepted any public method on a controller as a page action, so handler-shaped names were never reserved from URL dispatch: an authenticated and authorized request to `/backend/system/eventlogs/index_onEmptyLog` reached the handler of the same name and truncated the system event log. Backend paths are routed through `Route::any`, and CSRF validation is skipped for `HEAD`, `GET` and `OPTIONS` requests.\n\nThe default `SameSite=Lax` session cookie is sent on top-level cross-site navigation, so a link on an attacker-controlled page is sufficient — no form, no script and no token. Handler arguments are taken from URL path segments, so the attacker also chooses the target record. Affected handlers across the `backend`, `cms` and `system` modules cover log truncation, resetting settings to their defaults, altering backend user state, and deleting CMS templates. None of them disclose data to the attacker or write attacker-controlled content, so the impact is destructive and state-changing rather than con","public_affected_ranges":["ECOSYSTEM: introduced 1.0.319; fixed 1.2.14"]}],"null_published_at":"2026-10-31T22:13:14.309Z","source_updated_at":"2026-08-20T19:00:08.915Z","source_disclosed_at":"2026-08-20T18:44:59.000Z","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":"2026-10-31T21:42:30.985Z"}],"next_cursor":null,"snapshot_revision":"42594"}