{"items":[{"id":"NVI-00002768","kind":"vulnerability","title":"Craft CMS has a Missing Authorization Check on User Group Removal via save-permissions Action","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jq2f-59pj-p3m3","CVE-2026-41128"],"plain_summary":"OSV carries this publisher advisory for craftcms/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 5.9.15 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-261c5298c41e9f59f6bac689b69412a7"],"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-c7de5df48a76d144dacec6fccbada6bb"],"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":"0.248%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.16202. Missing scores are unknown.","source_id":"sr-c7de5df48a76d144dacec6fccbada6bb"}],"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-261c5298c41e9f59f6bac689b69412a7","url":"https://github.com/advisories/GHSA-jq2f-59pj-p3m3","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-jq2f-59pj-p3m3","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.968Z"},{"id":"sr-c7de5df48a76d144dacec6fccbada6bb","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-2026-41128","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.378Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-261c5298c41e9f59f6bac689b69412a7"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `actionSavePermissions()` endpoint allows a user with only `viewUsers` permission to remove arbitrary users from all user groups. While `_saveUserGroups()` enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty `groups` value removes all existing group memberships.\n\n## Affected Versions\n\n- Craft CMS 5.6.0 through 5.9.14 (latest release at time of report)\n- Regression introduced in 5.6.0 when the `viewUsers` permission was added\n- Prior to 5.6.0, `editedUser()` required `editUsers`, which implicitly protected this endpoint\n- Requires Pro edition or higher (the vulnerable code path is gated by `CmsEdition::Pro`)\n\n## Vulnerability Details\n\n### Root Cause\n\nThis is a **regression** introduced in Craft CMS 5.6.0 when the `viewUsers` permission was added. Before that change, `editedUser()` required `editUsers` permission for accessing other users’ data, which implicitly protected `actionSavePermissions()`. After the change, `actionSavePermissions()` became reachable for users with read-only access to other users, but the underlying group-saving logic still lacked authorization for group removals.\n\n","public_affected_ranges":["ECOSYSTEM: introduced 5.6.0; fixed 5.9.15"]}],"null_published_at":"2026-11-06T21:03:48.027Z","source_updated_at":"2026-05-05T16:11:41.801Z","source_disclosed_at":"2026-04-14T23:34:52.000Z","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":"2026-10-31T21:42:30.968Z"},{"id":"NVI-00002768","kind":"vulnerability","title":"Craft CMS has a Missing Authorization Check on User Group Removal via save-permissions Action","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-jq2f-59pj-p3m3","CVE-2026-41128"],"plain_summary":"OSV carries this publisher advisory for craftcms/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 5.9.15 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-261c5298c41e9f59f6bac689b69412a7"],"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-261c5298c41e9f59f6bac689b69412a7","url":"https://github.com/advisories/GHSA-jq2f-59pj-p3m3","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-jq2f-59pj-p3m3","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.968Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-261c5298c41e9f59f6bac689b69412a7"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"## Summary\n\nThe `actionSavePermissions()` endpoint allows a user with only `viewUsers` permission to remove arbitrary users from all user groups. While `_saveUserGroups()` enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty `groups` value removes all existing group memberships.\n\n## Affected Versions\n\n- Craft CMS 5.6.0 through 5.9.14 (latest release at time of report)\n- Regression introduced in 5.6.0 when the `viewUsers` permission was added\n- Prior to 5.6.0, `editedUser()` required `editUsers`, which implicitly protected this endpoint\n- Requires Pro edition or higher (the vulnerable code path is gated by `CmsEdition::Pro`)\n\n## Vulnerability Details\n\n### Root Cause\n\nThis is a **regression** introduced in Craft CMS 5.6.0 when the `viewUsers` permission was added. Before that change, `editedUser()` required `editUsers` permission for accessing other users’ data, which implicitly protected `actionSavePermissions()`. After the change, `actionSavePermissions()` became reachable for users with read-only access to other users, but the underlying group-saving logic still lacked authorization for group removals.\n\n","public_affected_ranges":["ECOSYSTEM: introduced 5.6.0; fixed 5.9.15"]}],"null_published_at":"2026-10-31T22:00:33.903Z","source_updated_at":"2026-05-05T16:11:41.801Z","source_disclosed_at":"2026-04-14T23:34:52.000Z","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":"2026-10-31T21:42:30.968Z"}],"next_cursor":null,"snapshot_revision":"42594"}