yiisoft Yii2 MockClass.php generate deserialization
Published Mar 24, 2025 · Updated Nov 3, 2026
Original summary
Normalized public record · Updated Nov 3, 2026
yiisoft Yii2 MockClass.php generate deserialization
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- VDB-300711 | yiisoft Yii2 MockClass.php generate deserialization ↗
- VDB-300711 | CTI Indicators (IOB, IOC, IOA) ↗
- Submit #521718 | Yii Software LLC Yii 2.0 <=2.0.39 Deserialization ↗
- Source repository ↗
Record history
Published Mar 24, 2025 · Last refreshed Nov 3, 2026