要点
- CVE-2026-39850 是影响 yiisoft/yii2 的高危 (CVSS 7.4)漏洞。
- 未来 30 天内被利用的概率（EPSS）：0.46%，高于 39.5% 的漏洞。
- 修复：升级到 2.0.55 或更高版本。
| Package | Affected versions | Patched versions |
|---|
| yiisoft/yii2 Packagist | < 2.0.55
| 2.0.55
|
Description
The core view rendering method View::renderPhpFile() calls extract($_params_, EXTR_OVERWRITE) before the require statement that includes the view file. A caller-controlled parameter named _file_ in the $params array overwrites the internal local variable that specifies which file is included — enabling a Local File Inclusion primitive.
Impact
- Local File Inclusion (arbitrary file read via non-PHP files)
- Potential RCE if attacker can write PHP files via a separate primitive
- Information disclosure
Patches
2.0.55
Workarounds
No.
NVD description
Yii 2 is a PHP application framework. Versions 2.0.54 and prior contain flawed logic in the core view rendering method View::renderPhpFile() that leads to Local File Inclusion. The function calls extract($_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.
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