CVE-2024-4990
CVSS v3
9.1
CRITICAL
EPSS Score
80.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does not validate that the value passed is a valid Behavior class name or configuration. This allows an attacker to instantiate arbitrary classes, passing parameters to their constructors and invoking setter methods. Depending on the installed dependencies, various types of attacks are possible, including the execution of arbitrary code, retrieval of sensitive information, and unauthorized access.
Technical details
- Published
- 2025-03-20
Frequently asked questions
What is CVE-2024-4990?
In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does not validate that the value passed is a valid Behavior class name or configuration. This allows an attacker to instantiate arbitrary classes, passing parameters to their constructors and invoking setter methods. Depending on the installed dependencies, various types of attacks are possible, including the execution of arbitrary code, retrieval of sensitive information, and unauthorized access.
Is CVE-2024-4990 actively exploited?
Active exploitation of CVE-2024-4990 has not been confirmed. Its EPSS score was 80.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-4990?
CVE-2024-4990 has a CVSS v3 base score of 9.1 (CRITICAL severity).
Is CVE-2024-4990 affecting your environment?
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