Yii 2: Local file inclusion via view parameter name collision

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-39850
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-20 20:16:39 UTC
Updated2026-05-21 15:24:25 UTC
DescriptionYii 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.

Risk And Classification

Primary CVSS: v3.1 7.4 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.000220000 probability, percentile 0.064710000 (date 2026-05-27)

Problem Types: CWE-20 | CWE-98 | CWE-20 CWE-20: Improper Input Validation | CWE-98 CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1CNADECLARED7.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Yiisoft Yii2 affected < 2.0.55 Not specified

References

ReferenceSourceLinkTags
github.com/yiisoft/yii2/security/advisories/GHSA-5vpg-rj7q-qpw2 [email protected] github.com
github.com/yiisoft/yii2/commit/109878b491dbffa541032bc99fb5e26d12cd0375 [email protected] github.com
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