{"items":[{"id":"NVI-00002249","kind":"vulnerability","title":"Craft CMS vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-255j-qw47-wjh5","CVE-2025-68455"],"plain_summary":"OSV carries this publisher advisory for craftcms/cms, 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 5.8.21 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-112857986574bd619fa02d497cd4b803"],"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":"The original advisory lists fixed boundaries 4.16.17 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-112857986574bd619fa02d497cd4b803"],"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-112857986574bd619fa02d497cd4b803","url":"https://github.com/advisories/GHSA-255j-qw47-wjh5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-255j-qw47-wjh5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:40.010Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-112857986574bd619fa02d497cd4b803"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"Note that attackers must have administrator access to the Craft Control Panel for this to work.\n\nUsers should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.\n\nResources:\n\nhttps://github.com/craftcms/cms/commit/6e608a1a5bfb36943f94f584b7548ca542a86fef\n\nhttps://github.com/craftcms/cms/commit/27f55886098b56c00ddc53b69239c9c9192252c7\n\nhttps://github.com/craftcms/cms/commit/ec43c497edde0b2bf2e39a119cded2e55f9fe593\n\nhttps://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04\n\n### Summary\n\nThis was reported as a vulnerability in Yii framework on August 7th (https://github.com/yiisoft/yii2/security/advisories/GHSA-gcmh-9pjj-7fp4). The Yii framework team denies responsibility for this (placing the onus on application developers) and hence has not (and seemingly will not) provide a fix at the framework level. Hence, I am reporting this to Craft as I found it to affect the latest (`5.6.0`) version of Craft CMS.\n\nLeveraging a legitimate but maliciously crafted Yii `Behavior` class, it’s possible to trigger Remote Code Execution (RCE) via Reflection when the tainted `Behavior` is attached to a Yii `Component`, and an event is also fired on the tainted `Com","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-RC1; fixed 5.8.21"]},{"certainty":"source_listed","source_ids":["sr-112857986574bd619fa02d497cd4b803"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"Note that attackers must have administrator access to the Craft Control Panel for this to work.\n\nUsers should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.\n\nResources:\n\nhttps://github.com/craftcms/cms/commit/6e608a1a5bfb36943f94f584b7548ca542a86fef\n\nhttps://github.com/craftcms/cms/commit/27f55886098b56c00ddc53b69239c9c9192252c7\n\nhttps://github.com/craftcms/cms/commit/ec43c497edde0b2bf2e39a119cded2e55f9fe593\n\nhttps://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04\n\n### Summary\n\nThis was reported as a vulnerability in Yii framework on August 7th (https://github.com/yiisoft/yii2/security/advisories/GHSA-gcmh-9pjj-7fp4). The Yii framework team denies responsibility for this (placing the onus on application developers) and hence has not (and seemingly will not) provide a fix at the framework level. Hence, I am reporting this to Craft as I found it to affect the latest (`5.6.0`) version of Craft CMS.\n\nLeveraging a legitimate but maliciously crafted Yii `Behavior` class, it’s possible to trigger Remote Code Execution (RCE) via Reflection when the tainted `Behavior` is attached to a Yii `Component`, and an event is also fired on the tainted `Com","public_affected_ranges":["ECOSYSTEM: introduced 4.0.0-RC1; fixed 4.16.17"]}],"null_published_at":"2026-10-31T21:54:04.903Z","source_updated_at":"2026-02-03T03:14:01.503Z","source_disclosed_at":"2026-01-05T18:50:14.000Z","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":"2026-10-31T21:41:40.010Z"}],"next_cursor":null,"snapshot_revision":"42594"}