[HIGH] Possible remote code execution via unserialize() on user input containing specially crafted string

PKSA-qmd6-d7pz-yk89 CVE-2020-15148 GHSA-699q-wcff-g9mj

Affected package: yiisoft/yii2

Affected version: <2.0.38

Reported by:
GitHub, FriendsOfPHP/security-advisories