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Symfony potential Cross-site Scripting vulnerabilities in CodeExtension filters

Moderate severity GitHub Reviewed Published Nov 10, 2023 in symfony/symfony • Updated Dec 3, 2023

Package

composer symfony/symfony (Composer)

Affected versions

>= 2.0.0, < 4.4.51
>= 5.0.0, < 5.4.31
>= 6.0.0, < 6.3.8

Patched versions

4.4.51
5.4.31
6.3.8
composer symfony/twig-bridge (Composer)
>= 2.0.0, < 4.4.51
>= 5.0.0, < 5.4.31
>= 6.0.0, < 6.3.8
4.4.51
5.4.31
6.3.8

Description

Description

Some Twig filters in CodeExtension use "is_safe=html" but don't actually ensure their input is safe.

Resolution

Symfony now escapes the output of the affected filters.

The patch for this issue is available here for branch 4.4.

Credits

We would like to thank Pierre Rudloff for reporting the issue and to Nicolas Grekas for providing the fix.

References

@nicolas-grekas nicolas-grekas published to symfony/symfony Nov 10, 2023
Published by the National Vulnerability Database Nov 10, 2023
Published to the GitHub Advisory Database Nov 12, 2023
Reviewed Nov 12, 2023
Last updated Dec 3, 2023

Severity

Moderate
6.1
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses

CVE ID

CVE-2023-46734

GHSA ID

GHSA-q847-2q57-wmr3

Source code

Credits

Checking history
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