{"id":"GHSA-8x3j-439w-537c","aliases":["CVE-2026-46725"],"title":"TYPO3 Remote Code Execution in extension \"Content Element Selector\" (ceselector)","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"CRITICAL","description":"The TYPO3 \"Content Element Selector\" (ceselector) extension passes an attacker-controlled cookie directly to PHP's `unserialize()` without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with `Persistent Mode: Static` in the plugin settings. This has been patched in version 3.0.3, 4.0.2, 5.0.1, and 6.0.1.","severity":"critical","score":9.2,"published":"2026-05-19T12:31:39.000Z","modified":"2026-09-10T03:50:11.689Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"mmc/ceselector","sources":[{"name":"OSV · GHSA-8x3j-439w-537c","url":"https://osv.dev/vulnerability/GHSA-8x3j-439w-537c"}],"ranges":[{"events":[{"introduced":"6.0.0"},{"fixed":"6.0.1"}],"type":"ECOSYSTEM"}],"versions":["6.0.0"],"fixed":["6.0.1"]},{"ecosystem":"Packagist","name":"mmc/ceselector","sources":[{"name":"OSV · GHSA-8x3j-439w-537c","url":"https://osv.dev/vulnerability/GHSA-8x3j-439w-537c"}],"ranges":[{"events":[{"introduced":"5.0.0"},{"fixed":"5.0.1"}],"type":"ECOSYSTEM"}],"versions":["5.0.0"],"fixed":["5.0.1"]},{"ecosystem":"Packagist","name":"mmc/ceselector","sources":[{"name":"OSV · GHSA-8x3j-439w-537c","url":"https://osv.dev/vulnerability/GHSA-8x3j-439w-537c"}],"ranges":[{"events":[{"introduced":"4.0.0"},{"fixed":"4.0.2"}],"type":"ECOSYSTEM"}],"versions":["4.0.0","4.0.1"],"fixed":["4.0.2"]},{"ecosystem":"Packagist","name":"mmc/ceselector","sources":[{"name":"OSV · GHSA-8x3j-439w-537c","url":"https://osv.dev/vulnerability/GHSA-8x3j-439w-537c"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"3.0.3"}],"type":"ECOSYSTEM"}],"versions":["2.0.0","2.0.1","2.0.2","2.0.3","2.0.4","3.0.0","3.0.1","3.0.2"],"fixed":["3.0.3"]}],"sourceAffected":[],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-46725","https://bitbucket.org/thismaechler/typo3-ext-ceselector","https://github.com/FriendsOfPHP/security-advisories/blob/master/mmc/ceselector/CVE-2026-46725.yaml","https://typo3.org/security/advisory/typo3-ext-sa-2026-013"],"sources":[{"name":"OSV","id":"GHSA-8x3j-439w-537c","modified":"2026-09-10T03:50:11.689803732Z","url":"https://osv.dev/vulnerability/GHSA-8x3j-439w-537c"}],"assessments":[{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T01:00:32.443Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}