CVE-2022-39261

High

Description

Twig is a template language for PHP. Versions 1.x prior to 1.44.7, 2.x prior to 2.15.3, and 3.x prior to 3.4.3 encounter an issue when the filesystem loader loads templates for which the name is a user input. It is possible to use the `source` or `include` statement to read arbitrary files from outside the templates' directory when using a namespace like `@somewhere/../some.file`. In such a case, validation is bypassed. Versions 1.44.7, 2.15.3, and 3.4.3 contain a fix for validation of such template names. There are no known workarounds aside from upgrading.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Symfony Twig

PublishedSep 28, 2022

First seenSep 28, 2022

Weakness typeCWE-22Path traversal

How to fix

Update

symfony twig1.44.7, 2.15.3, 3.4.3 or later
drupal drupal9.3.22, 9.4.7 or later
drupal/core9.3.22, 9.4.7 or later
twig/twig1.44.7, 2.15.3, 3.4.3 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
symfony twig	1.0.0 ≤ v < 1.44.7, 2.0.0 ≤ v < 2.15.3, 3.0.0 ≤ v < 3.4.3	1.44.7, 2.15.3, 3.4.3
drupal drupal	8.0.0 ≤ v < 9.3.22, 9.4.0 ≤ v < 9.4.7	9.3.22, 9.4.7
fedoraproject fedora	35, 36, 37	—
debian debian_linux	10.0, 11.0	—
drupal/corePackagist	8.0.0 ≤ v < 9.3.22, 9.4.0 ≤ v < 9.4.7	9.3.22, 9.4.7
twig/twigPackagist	1.0.0 ≤ v < 1.44.7, 2.0.0 ≤ v < 2.15.3, 3.0.0 ≤ v < 3.4.3	1.44.7, 2.15.3, 3.4.3

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