Read Time:1 Minute, 33 Second
Project: 
Drupal core
Date: 
2025-March-19
Security risk: 
Moderately critical 13 ∕ 25 AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default
Vulnerability: 
Cross Site Scripting
Affected versions: 
>= 8.0.0 < 10.3.14 || >= 10.4.0 < 10.4.5 || >= 11.0.0 < 11.0.13 || >= 11.1.0 < 11.1.5
Description: 

Drupal core Link field attributes are not sufficiently sanitized, which can lead to a Cross Site Scripting vulnerability (XSS).

This vulnerability is mitigated by that fact that an attacker would need to have the ability to add specific attributes to a Link field, which typically requires edit access via core web services, or a contrib or custom module.

Sites with the Link module disabled or that do not use any link fields are not affected.

Solution: 

Install the latest version:

If you use Drupal 10.3.x, update to Drupal 10.3.14
If you use Drupal 10.4.x, update to Drupal 10.4.5
If you use Drupal 11.0.x, update to Drupal 11.0.13
If you use Drupal 11.1.x, update to Drupal 11.1.5

All versions of Drupal prior to 10.3 are end-of-life and do not receive security coverage from the Drupal Security Team.

Reported By: 
Samuel Mortenson (samuel.mortenson)
Fixed By: 
Benji Fisher (benjifisher) of the Drupal Security Team
Bram Driesen (bramdriesen) Provisional Member of the Drupal Security Team
Alex Bronstein (effulgentsia)
Jen Lampton (jenlampton) Provisional Member of the Drupal Security Team
Lee Rowlands (larowlan) of the Drupal Security Team
Dave Long (longwave) of the Drupal Security Team
Drew Webber (mcdruid) of the Drupal Security Team
Joseph Zhao (pandaski) Provisional Member of the Drupal Security Team
Adam G-H (phenaproxima)
Samuel Mortenson (samuel.mortenson)
Jess (xjm) of the Drupal Security Team

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