[IT-SecNots] [Security-news] Webform - Moderately critical - Cross-site scripting - SA-CONTRIB-2026-155

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-155

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-2026-96361
Description: 
The Webform module allows site builders to create forms, collect submissions,
and configure access to forms and submission data.

The module does not sufficiently sanitize text counter configuration before
passing options to the bundled jQuery Text Counter library. Under certain
configurations, this can allow markup from counter-related settings to be
inserted into the page leading to a cross-site scripting vulnerability.

This vulnerability is mitigated by the fact that an attacker must be able to
create or edit affected Webform elements, or place specially crafted counter
markup on a page where the Webform counter JavaScript is active.

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
 * Pierre Rudloff (prudloff) [8] of the Drupal Security Team

Coordinated By: 
 * Swan Kalata (akalata) [9] of the Drupal Security Team
 * Bram Driesen (bramdriesen) [10] of the Drupal Security Team
 * Greg Knaddison (greggles) [11] of the Drupal Security Team
 * Pierre Rudloff (prudloff) [12] of the Drupal Security Team
 * Jess  (xjm) [13] of the Drupal Security Team

------------------------------------------------------------------------------
Contribution record [14]

[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/prudloff
[9] https://www.drupal.org/u/akalata
[10] https://www.drupal.org/u/bramdriesen
[11] https://www.drupal.org/u/greggles
[12] https://www.drupal.org/u/prudloff
[13] https://www.drupal.org/u/xjm
[14]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3600706

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