CVE-2020-15148: Possible remote code execution via unserialize() on user input containing specially crafted string

Severity: Critical

CVSS Score: 8.9

Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize()` on arbitrary user input. This is fixed in version 2.0.38. A possible workaround without upgrading is available in the linked advisory.