What’s Vulnerable › Vulnerabilities

CVE-2025-2690: yiisoft Yii2 MockClass.php generate deserialization

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-03-24 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability, which was classified as critical, was found in yiisoft Yii2 up to 2.0.39. This affects the function Generate of the file phpunit\src\Framework\MockObject\MockClass.php. The manipulation leads to deserialization. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• yiisoft yii: from 2.0.0 through 2.0.39

References

• https://github.com/gaorenyusi/gaorenyusi/blob/main/Yii2-2.md
• https://vuldb.com/?ctiid.300711
• https://vuldb.com/?id.300711
• https://vuldb.com/?submit.521718

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