#VU107992 Improper protection of alternate path in Yii - CVE-2024-58136

Vulnerability identifier: #VU107992

Vulnerability risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2024-58136

CWE-ID: CWE-424

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Yii
Web applications / CMS

Vendor: Yii Software

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper protection of alternate path in framework/base/Component.php. A remote non-authenticated attacker can send a specially crafted request to the application and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild since February 2025.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Yii: 1.0.0 - 2.0.51

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External links
https://github.com/yiisoft/yii2/commit/40fe496eda529fd1d933b56a1022ec32d3cd0b12
https://github.com/yiisoft/yii2/compare/2.0.51...2.0.52
https://github.com/yiisoft/yii2/pull/20232
https://github.com/yiisoft/yii2/pull/20232#issuecomment-2252459709
https://www.yiiframework.com/news/709/please-upgrade-to-yii-2-0-52

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.