HighGHSA-5vpg-rj7q-qpw2CVE-2026-39850

Yii 2: Local file inclusion via view parameter name collision

Published 11 May 2026 · Updated 10 Sept 2026

Affected package

yiisoft/yii2Composer
Affected
<2.0.55
Fixed in
2.0.55
Update to the fixed version for your release line, for example:composer require yiisoft/yii2:^2.0.55

Details

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.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.