{"schemaVersion":3,"id":"CVE-2026-109308","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request parameter in AppController::actionCacheUpdates to UpdatesModel without Component::cleanseConfig(), allowing behavior and event-handler injection. Authenticated control panel users with the performUpdates permission or Updates-utility access can supply 'as' or 'on' keys, such as an AttributeTypecastBehavior gadget, to execute arbitrary 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Control of Generation of Code ('Code Injection')","description":"The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/94.html"}],"affected":[{"vendor":"craftcms","product":"cms","name":"cms","label":"cms","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0.0, < 4.18.7","noFixRecorded":false,"fixedIn":null},{"text":"≥ 5.0.0, < 5.10.14","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.0, < 4.18.7 | ≥ 5.0.0, < 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updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T16:25:27.729Z","stale":false,"partial":false}}