CVE-2023-47130: Yiiframework Yii

Critical severity, CVSS 9.8. EPSS: 3.1% chance of exploitation in the next 30 days.

Yii is an open source PHP web framework. yiisoft/yii before version 1.1.29 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize()` on arbitrary user input. An attacker may leverage this vulnerability to compromise the host system. A fix has been developed for the 1.1.29 release. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• Yiiframework Yii: before 1.1.29 (fixed in 1.1.29)

Published 2023-11-14. Last modified 2026-06-17.