What’s Vulnerable › Vulnerabilities

CVE-2024-58136: Yiiframework Yii Improper Protection of Alternate Path Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-05-02
• EPSS: 87.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-10 · updated 2026-06-17
• Weakness: CWE-424

Description

Yii 2 before 2.0.52 mishandles the attaching of behavior that is defined by an __class array key, a CVE-2024-4990 regression, as exploited in the wild in February through April 2025.

Affected products

• yiisoft yii: before 2.0.52 — fixed in 2.0.52

How to fix

Upgrade to a fixed version: yiisoft yii 2.0.52. Check the vendor advisory for mitigations.

References

• 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
• https://sensepost.com/blog/2025/investigating-an-in-the-wild-campaign-using-rce-in-craftcms/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-58136

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