[IT-SecNots] [Security-news] Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-159

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-159

Project: Webform [1]
Project machine name: webform
Date: 2026-September-23
Security risk: *Moderately critical* 12 ∕ 25
AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Uncommon [2]
Vulnerability: Cross-site scripting

Affected versions: <6.2.12 || >=6.3.0 <6.3.1
CVE IDs: CVE-2026-96359
Description: 
The Webform module allows site builders to create forms, collect submissions,
and configure access to forms and submission data.

The module did not sufficiently sanitize attributes used by its color
element. Under certain conditions, specially crafted attributes could result
in cross-site scripting (XSS) when the element is rendered.

This vulnerability is mitigated by the fact that an attacker must be able to
add a specially crafted link with a specific class to the same page as the
affected webform.

Solution: 
Install the latest version:

 * If you use the 6.2.x branch of Webform upgrade to Webform 6.2.12 [3].
 * If you use the 6.3.x branch of Webform, upgrade to Webform 6.3.1 [4].

Reported By: 
 * Pierre Rudloff (prudloff) [5] of the Drupal Security Team

Fixed By: 
 * Jacob Rockowitz (jrockowitz) [6]
 * Lee Rowlands (larowlan) [7] of the Drupal Security Team

Coordinated By: 
 * Swan Kalata (akalata) [8] of the Drupal Security Team
 * Bram Driesen (bramdriesen) [9] of the Drupal Security Team
 * Greg Knaddison (greggles) [10] of the Drupal Security Team
 * Pierre Rudloff (prudloff) [11] of the Drupal Security Team
 * Jess  (xjm) [12] of the Drupal Security Team

------------------------------------------------------------------------------
Contribution record [13]

[1] https://www.drupal.org/project/webform
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/webform/releases/6.2.12
[4] https://www.drupal.org/project/webform/releases/6.3.1
[5] https://www.drupal.org/u/prudloff
[6] https://www.drupal.org/u/jrockowitz
[7] https://www.drupal.org/u/larowlan
[8] https://www.drupal.org/u/akalata
[9] https://www.drupal.org/u/bramdriesen
[10] https://www.drupal.org/u/greggles
[11] https://www.drupal.org/u/prudloff
[12] https://www.drupal.org/u/xjm
[13]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3600594

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