CVE-2022-41922: Yiiframework Yii

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

`yiisoft/yii` before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize()` on arbitrary user input. This has been patched in 1.1.27.

Affected products

• Yiiframework Yii: before 1.1.27 (fixed in 1.1.27)

Published 2022-11-23. Last modified 2026-06-17.