Yii 2: Local file inclusion via view parameter name collision

CAO 7.4CVE-2026-39850 · GHSA-5vpg-rj7q-qpw2 · Công bố 20/05/2026 · cập nhật 23/07/2026

Tóm tắt nhanh

CVE-2026-39850 là lỗ hổng mức CAO (CVSS 7.4) ảnh hưởng yiisoft/yii2.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.46%, cao hơn 39.5% các lỗ hổng khác.
Cách xử lý: cập nhật lên 2.0.55 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
yiisoft/yii2 Packagist	`< 2.0.55`	`2.0.55`

Mô tả

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.

Mô tả của NVD

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.