{"id":"CVE-2026-46725","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-46725","summary":"TYPO3 Remote Code Execution in extension \"Content Element Selector\" (ceselector)","details":"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.","published":"2026-05-19T12:31:39Z","modified":"2026-06-29T17:45:16.232128246Z","cvss":null,"epss":{"score":0.02625,"percentile":0.84174,"asOf":"2026-08-15"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"mmc/ceselector","fixedVersion":"6.0.1"},{"ecosystem":"Packagist","name":"mmc/ceselector","fixedVersion":"5.0.1"},{"ecosystem":"Packagist","name":"mmc/ceselector","fixedVersion":"4.0.2"},{"ecosystem":"Packagist","name":"mmc/ceselector","fixedVersion":"3.0.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46725"},{"type":"PACKAGE","url":"https://bitbucket.org/thismaechler/typo3-ext-ceselector"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/mmc/ceselector/CVE-2026-46725.yaml"},{"type":"WEB","url":"https://typo3.org/security/advisory/typo3-ext-sa-2026-013"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-06-29T17:45:16.232128246Z"}}