{"items":[{"id":"NVI-00007033","kind":"vulnerability","title":"Winter: Authenticated backend users can bypass Users controller permission checks","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-j5jq-cr68-v2xx","CVE-2026-35445"],"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 1.2.13 for winter/wn-backend-module. Confirm the publisher’s latest guidance.","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"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-07f74339cb1819424eeb0a73cce874c3"],"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":"2026-09-09T21:09:13.080Z","value":"7.1 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-bf786b5856b07e38886c9cf74bb7fc6e"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.439%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.38297. Missing scores are unknown.","source_id":"sr-07f74339cb1819424eeb0a73cce874c3"}],"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-cc27e2babff82e0bfa4c1bd9238399e2","url":"https://github.com/advisories/GHSA-j5jq-cr68-v2xx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-j5jq-cr68-v2xx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.437Z"},{"id":"sr-bf786b5856b07e38886c9cf74bb7fc6e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35445","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-35445","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:23:23.484Z"},{"id":"sr-07f74339cb1819424eeb0a73cce874c3","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-2026-35445","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.325Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS did not validate the handler name submitted through the form postback mechanism (`_handler` POST field) in the same way as AJAX requests (`X_WINTER_REQUEST_HANDLER` header). The AJAX path validates that handler names match the `on[A-Z][\\w+]*` pattern, but the postback path passed the handler name directly to the handler dispatcher with no validation.\n\nThis allowed an authenticated backend user to call any method on a controller — including action-prefixed, protected, and private methods — by submitting a crafted POST request with a `_handler` field, as long as the controller either:\n\n- Contains a publicly available action via the `$publicActions` property, or\n- Degrades or removes the `$requiredPermissions` check in its constructor based on a condition\n\nThe backend's own Users controller was affected by the second scenario: it set `$requiredPermissions` to `null` for the `myaccount` action, allowing any authenticated backend user to access the controller without the `backend.manage_users` permission. Combined with the postback bypass, this allowed calling controller methods such as `update_onDelete`, `update_onRestore`, `update_onUnsuspen","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.2.13"]}],"null_published_at":"2026-11-07T22:29:23.380Z","source_updated_at":"2026-08-12T15:41:04.337Z","source_disclosed_at":"2026-08-12T15:15:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:20.437Z"},{"id":"NVI-00007033","kind":"vulnerability","title":"Winter: Authenticated backend users can bypass Users controller permission checks","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j5jq-cr68-v2xx","CVE-2026-35445"],"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 1.2.13 for winter/wn-backend-module. Confirm the publisher’s latest guidance.","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"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-07f74339cb1819424eeb0a73cce874c3"],"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":"2026-11-04T12:03:12.000Z","value":"0.439%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.38297. Missing scores are unknown.","source_id":"sr-07f74339cb1819424eeb0a73cce874c3"}],"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-cc27e2babff82e0bfa4c1bd9238399e2","url":"https://github.com/advisories/GHSA-j5jq-cr68-v2xx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-j5jq-cr68-v2xx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.437Z"},{"id":"sr-07f74339cb1819424eeb0a73cce874c3","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-2026-35445","publisher":"FIRST EPSS","observed_at":"2026-11-04T17:58:50.325Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS did not validate the handler name submitted through the form postback mechanism (`_handler` POST field) in the same way as AJAX requests (`X_WINTER_REQUEST_HANDLER` header). The AJAX path validates that handler names match the `on[A-Z][\\w+]*` pattern, but the postback path passed the handler name directly to the handler dispatcher with no validation.\n\nThis allowed an authenticated backend user to call any method on a controller — including action-prefixed, protected, and private methods — by submitting a crafted POST request with a `_handler` field, as long as the controller either:\n\n- Contains a publicly available action via the `$publicActions` property, or\n- Degrades or removes the `$requiredPermissions` check in its constructor based on a condition\n\nThe backend's own Users controller was affected by the second scenario: it set `$requiredPermissions` to `null` for the `myaccount` action, allowing any authenticated backend user to access the controller without the `backend.manage_users` permission. Combined with the postback bypass, this allowed calling controller methods such as `update_onDelete`, `update_onRestore`, `update_onUnsuspen","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.2.13"]}],"null_published_at":"2026-11-06T07:24:11.283Z","source_updated_at":"2026-08-12T15:41:04.337Z","source_disclosed_at":"2026-08-12T15:15:17.000Z","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":"2026-10-31T21:42:20.437Z"},{"id":"NVI-00007033","kind":"vulnerability","title":"Winter: Authenticated backend users can bypass Users controller permission checks","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j5jq-cr68-v2xx","CVE-2026-35445"],"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 1.2.13 for winter/wn-backend-module. Confirm the publisher’s latest guidance.","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"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-cc27e2babff82e0bfa4c1bd9238399e2","url":"https://github.com/advisories/GHSA-j5jq-cr68-v2xx","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-j5jq-cr68-v2xx","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.437Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-cc27e2babff82e0bfa4c1bd9238399e2"],"technology":"winter/wn-backend-module","known_exclusions":[],"conditions_summary":"### Impact\n\nAffected versions of Winter CMS did not validate the handler name submitted through the form postback mechanism (`_handler` POST field) in the same way as AJAX requests (`X_WINTER_REQUEST_HANDLER` header). The AJAX path validates that handler names match the `on[A-Z][\\w+]*` pattern, but the postback path passed the handler name directly to the handler dispatcher with no validation.\n\nThis allowed an authenticated backend user to call any method on a controller — including action-prefixed, protected, and private methods — by submitting a crafted POST request with a `_handler` field, as long as the controller either:\n\n- Contains a publicly available action via the `$publicActions` property, or\n- Degrades or removes the `$requiredPermissions` check in its constructor based on a condition\n\nThe backend's own Users controller was affected by the second scenario: it set `$requiredPermissions` to `null` for the `myaccount` action, allowing any authenticated backend user to access the controller without the `backend.manage_users` permission. Combined with the postback bypass, this allowed calling controller methods such as `update_onDelete`, `update_onRestore`, `update_onUnsuspen","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.2.13"]}],"null_published_at":"2026-10-31T22:13:14.308Z","source_updated_at":"2026-08-12T15:41:04.337Z","source_disclosed_at":"2026-08-12T15:15:17.000Z","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":"2026-10-31T21:42:20.437Z"}],"next_cursor":null,"snapshot_revision":"42594"}