CVE-2022-39261

Published: 28 September 2022

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.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
php-twig Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needed
	jammy	Needed
	kinetic	Needed
	trusty	Ignored (out of standard support)
	upstream	Released (1.44.7, 2.15.3, 3.4.3)
	xenial	Ignored (out of standard support)
	Patches: upstream: https://github.com/twigphp/Twig/commit/35f3035c5deb0041da7b84daf02dea074ddc7a0b
twig Launchpad, Ubuntu, Debian	bionic	Needed
	focal	Does not exist
	jammy	Does not exist
	kinetic	Does not exist
	trusty	Does not exist
	upstream	Released (1.44.7, 2.15.3, 3.4.3)
	xenial	Released (1.23.1-1ubuntu4+esm1)
	Patches: upstream: https://github.com/twigphp/Twig/commit/35f3035c5deb0041da7b84daf02dea074ddc7a0b

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

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