{"id":"CVE-2026-39850","aliases":["GHSA-5vpg-rj7q-qpw2"],"url":"https://o3.security/vulnerability/CVE-2026-39850","summary":"Yii 2: Local file inclusion via view parameter name collision","details":"Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($_params_, EXTR_OVERWRITE) before the require statement that loads the view file. As a result, a caller-controlled _file_ key in the $params array overwrites the internal local variable specifying which file to include, potentially enabling RCE if an attacker can write PHP files through a separate primitive, as well as information disclosure. This issue has been fixed in version 2.0.55.","published":"2026-05-20T19:51:03.769Z","modified":"2026-08-07T11:49:53.026423799Z","cvss":{"score":7.4,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"yiisoft/yii2","fixedVersion":"2.0.55"}],"fix":{"url":"https://github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375","label":"yiisoft/yii2@109878b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39850.json"},{"type":"ADVISORY","url":"https://github.com/yiisoft/yii2/security/advisories/GHSA-5vpg-rj7q-qpw2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39850"},{"type":"FIX","url":"https://github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:49:53.026423799Z"}}