Vulnerability · Published Mar 24, 2025 · Assigned by VulDB

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

Medium 6.3

In plain English

A medium-severity unsafe deserialization in Yii2 from yiisoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.7%top 47.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
yiisoft	Yii2	2.0.02.0.12.0.22.0.32.0.42.0.52.0.62.0.7

Weakness: CWE-502, CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

VDB-300711 | yiisoft Yii2 MockClass.php generate deserialization vdb-entry, technical-description
VDB-300711 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #521718 | Yii Software LLC Yii 2.0 <=2.0.39 Deserialization third-party-advisory
https://github.com/gaorenyusi/gaorenyusi/blob/main/Yii2-2.md exploit