View online: https://www.drupal.org/sa-contrib-2026-162 Project: Webform [1] Project machine name: webform Date: 2026-September-23 Security risk: *Moderately critical* 13 ∕ 25 AC:Basic/A:User/CI:Some/II:Some/E:Proof/TD:Uncommon [2] Vulnerability: Cross-site scripting Affected versions: <6.2.12 || >=6.3.0 <6.3.1 CVE IDs: CVE-2026-96367 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 restrict access to the custom attributes YAML editor. Users with permission to create or edit webforms (but without permission to edit webform source) may be able to add custom attributes, leading to cross-site scripting. This vulnerability is mitigated by the fact that an attacker must have a role with permission to create or edit webforms. 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: * Mitch Portier (arkener) [5] Fixed By: * Dan Chadwick (danchadwick) [6] * Jacob Rockowitz (jrockowitz) [7] * Liam Morland (liam morland) [8] Coordinated By: * Swan Kalata (akalata) [9] of the Drupal Security Team * Bram Driesen (bramdriesen) [10] of the Drupal Security Team * Damien McKenna (damienmckenna) [11] of the Drupal Security Team * Juraj Nemec (poker10) [12] of the Drupal Security Team * Pierre Rudloff (prudloff) [13] of the Drupal Security Team * Jess (xjm) [14] of the Drupal Security Team ------------------------------------------------------------------------------ Contribution record [15] [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/arkener [6] https://www.drupal.org/u/danchadwick [7] https://www.drupal.org/u/jrockowitz [8] https://www.drupal.org/u/liam-morland [9] https://www.drupal.org/u/akalata [10] https://www.drupal.org/u/bramdriesen [11] https://www.drupal.org/u/damienmckenna [12] https://www.drupal.org/u/poker10 [13] https://www.drupal.org/u/prudloff [14] https://www.drupal.org/u/xjm [15] https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal....