Yii
CVE-2024-58136
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Alternate path protection
|
| Impact | Critical risk (CVSS 9.0, EPSS 57.5%). Yii 2 is a popular PHP framework. The regression of a previously patched vulnerability indicates inadequate patch validation. Exploited in the wild from February through April 2025. |
| Exploit ScenarioDerived | An attacker crafts requests that manipulate Yii component behavior definitions, injecting a __class reference to a PHP class with dangerous side effects in its constructor or destructor, achieving remote code execution on the application server. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Yii Framework 2 before 2.0.52 contains a behavior attachment regression that allows attackers to exploit the __class array key for arbitrary class instantiation, exploited in the wild February-April 2025.
Earlier versions of this analysis (1)
A regression in Yii 2 Framework reintroduced a vulnerability (CVE-2024-4990 bypass) where the __class array key in behavior definitions allows arbitrary PHP class instantiation, leading to remote code execution.
RemediationAI
Update Yii 2 to 2.0.52+. Review application code for dynamic behavior attachment patterns. Monitor for exploitation attempts.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in composer
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The CWE-424 insufficient protection flaw allows attackers to specify arbitrary PHP classes via the __class key when attaching behaviors to Yii components. This enables instantiation of dangerous classes that provide code execution.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionCVE.org
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.
Executive ViewAI
Organizations using the wild in February face critical risk from CVE-2024-58136 rated CVSS 9.0. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. A patch is available and should be applied immediately given the critical severity.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
Threat Intelligence Overview
NVD
CVE.org
CISA KEV
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)CVE.org
Yii 2 (yiisoft/yii2) before version 2.0.38 is vulnerable to remote code execution if the application calls `unserialize(
SQL injection vulnerability found in Yii Framework Yii 2 Framework before v.2.0.47 allows the a remote attacker to execu
In yiisoft/yii2 version 2.0.48, the base Component class contains a vulnerability where the `__set()` magic method does
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator. Rated high severity (CVSS 7.5), this vuln
Yii is an open source PHP web framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable,
`yiisoft/yii` before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize(
Yii 2.x before 2.0.15 allows remote attackers to execute arbitrary LUA code via a variant of the CVE-2018-7269 attack in
The findByCondition function in framework/db/ActiveRecord.php in Yii 2.x before 2.0.15 allows remote attackers to conduc
A vulnerability, which was classified as critical, has been found in yiisoft Yii2 up to 2.0.45. Rated medium severity (C
A vulnerability, which was classified as critical, was found in yiisoft Yii2 up to 2.0.39. Rated medium severity (CVSS 5
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator. Rated medium severity (CVSS 5.3), this vu
Yii 2.x before 2.0.15 allows remote attackers to inject unintended search conditions via a variant of the CVE-2018-7269
Exploit-DB