Yii
CVE-2022-41922
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V1 - Encoding and Sanitization Safe deserialization, type allowlists
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could execute arbitrary code through malicious serialized objects by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
yiisoft/yii before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls unserialize() on arbitrary user input. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Deserialization of Untrusted Data vulnerability could allow attackers to execute arbitrary code through malicious serialized objects.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.
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
This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. yiisoft/yii before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls unserialize() on arbitrary user input. This has been patched in 1.1.27. Affected products include: Yiiframework Yii. Version information: version 1.1.27.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
yiisoft/yii before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls unserialize() on arbitrary user input. This has been patched in 1.1.27.
Threat Intelligence Overview
NVD
CVE.org
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
Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
Yii Framework 2 before 2.0.52 contains a behavior attachment regression that allows attackers to exploit the __class arr
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,
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