{"id":"CVE-2018-15133","aliases":["GHSA-qvqm-h22r-4cp9"],"url":"https://o3.security/vulnerability/CVE-2018-15133","summary":"Laravel Framework RCE Vulnerability","details":"In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in Illuminate/Encryption/Encrypter.php and PendingBroadcast in gadgetchains/Laravel/RCE/3/chain.php in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.","published":"2018-08-09T19:29:00.333Z","modified":"2026-10-20T10:50:02.670654373Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.76814,"percentile":0.99519,"asOf":"2026-09-15"},"cisaKev":null,"exploitsKnown":15,"affectedPackages":[{"ecosystem":"Packagist","name":"laravel/framework","fixedVersion":null},{"ecosystem":"Packagist","name":"laravel/framework","fixedVersion":"5.6.30"}],"fix":{"url":"https://github.com/laravel/framework/commit/d84cf988ed5d4661a4bf1fdcb08f5073835083a0","label":"laravel/framework@d84cf98"},"references":[{"type":"WEB","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-15133"},{"type":"ADVISORY","url":"https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15133"},{"type":"WEB","url":"https://github.com/laravel/framework/commit/d84cf988ed5d4661a4bf1fdcb08f5073835083a0"},{"type":"WEB","url":"https://github.com/kozmic/laravel-poc-CVE-2018-15133"},{"type":"PACKAGE","url":"https://github.com/laravel/framework"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-20T10:50:02.670654373Z"}}