[IT-SecNots] [Security-news] Webform - Moderately critical - Access bypass - SA-CONTRIB-2026-168

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-168

Project: Webform [1]
Project machine name: webform
Date: 2026-September-23
Security risk: *Moderately critical* 11 ∕ 25
AC:Complex/A:Admin/CI:Some/II:Some/E:Theoretical/TD:Default [2]
Vulnerability: Access bypass

Affected versions: <6.2.12 || >=6.3.0 <6.3.1
CVE IDs: CVE-2026-96373
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 validate requested filenames when serving
generated submission exports. Under certain configurations, a user with
permission to view submission results for one webform may be able to access
or remove files from the configured export temporary directory that were not
generated for that webform.

This vulnerability is mitigated by the fact that an attacker must have access
to view submission results for a webform and must know or be able to
determine a target filename.

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: 
 * Marcus Johansson (marcus_johansson) [5]

Fixed By: 
 * Jacob Rockowitz (jrockowitz) [6]

Coordinated By: 
 * Swan Kalata (akalata) [7] of the Drupal Security Team
 * Bram Driesen (bramdriesen) [8] of the Drupal Security Team
 * Greg Knaddison (greggles) [9] of the Drupal Security Team
 * Pierre Rudloff (prudloff) [10] of the Drupal Security Team
 * Jess  (xjm) [11] of the Drupal Security Team

------------------------------------------------------------------------------
Contribution record [12]

[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/marcus_johansson
[6] https://www.drupal.org/u/jrockowitz
[7] https://www.drupal.org/u/akalata
[8] https://www.drupal.org/u/bramdriesen
[9] https://www.drupal.org/u/greggles
[10] https://www.drupal.org/u/prudloff
[11] https://www.drupal.org/u/xjm
[12]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3623421

_______________________________________________
Security-news mailing list -- security-news AT drupal.org
To unsubscribe send an email to security-news-leave AT drupal.org
Unsubscribe at