CVE-2026-39850 Details
Description
Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($_params_, EXTR_OVERWRITE) before the require statement that loads the view file. As a result, a caller-controlled _file_ key in the $params array overwrites the internal local variable specifying which file to include, potentially enabling RCE if an attacker can write PHP files through a separate primitive, as well as information disclosure. This issue has been fixed in version 2.0.55.
A local file inclusion vulnerability has been identified in Yii 2 versions prior to 2.0.54. The issue arises in the core view rendering method `View::renderPhpFile()`, where flawed logic allows a caller-controlled `_file_` parameter to overwrite the internal variable that specifies which file to include. This vulnerability could lead to arbitrary file read, and potentially remote code execution if an attacker can write PHP files through a separate method.
Users can upgrade to Yii 2 version 2.0.55 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 20, 2026CISA-ADP
Assessed May 21, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375 | [email protected] | Source CodeVendor |
| https://github.com/yiisoft/yii2/security/advisories/GHSA-5vpg-rj7q-qpw2 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-98 | Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Yii | < 2.0.54 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 20, 2026 | New CVE Received | [email protected] |