[IT-SecNots] [Security-news] Advanced Search - Moderately critical - Access bypass - SA-CONTRIB-2026-118

[security-news AT drupal.org]

View online: https://www.drupal.org/sa-contrib-2026-118

Project: Advanced Search [1]
Date: 2026-September-02
Security risk: *Moderately critical* 12 ∕ 25
AC:Complex/A:None/CI:Some/II:None/E:Theoretical/TD:All [2]
Vulnerability: Access bypass

Affected versions: <2.4.5
CVE IDs: CVE-2026-84910
Description: 
This module enables AJAX updates for advanced search, facet, and search
result blocks.

The module doesn’t sufficiently check block access when arbitrary block IDs
are submitted to its publicly accessible AJAX endpoint. This may allow an
unauthenticated attacker to retrieve restricted block content.

This vulnerability is mitigated by the fact that an attacker must know or
guess a restricted block’s machine ID, and the block must contain sensitive
content protected by block access or visibility restrictions.

Solution: 
Install the latest version:

 * If you use the Advanced Search module, upgrade to Advanced Search 2.4.5
   [3]

Reported By: 
 * Marcus Johansson (marcus_johansson) [4]

Fixed By: 
 * Annie Oelschlager (annieoelschlager) [5]
 * Joe Corall (joecorall) [6]
 * Marcus Johansson (marcus_johansson) [7]

Coordinated By: 
 * Swan Kalata (akalata) [8] of the Drupal Security Team
 * Neil Drumm (drumm) [9] of the Drupal Security Team
 * Greg Knaddison (greggles) [10] of the Drupal Security Team
 * Juraj Nemec (poker10) [11] of the Drupal Security Team

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

[1] https://www.drupal.org/project/advanced_search
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/advanced_search/releases/2.4.5
[4] https://www.drupal.org/u/marcus_johansson
[5] https://www.drupal.org/u/annieoelschlager
[6] https://www.drupal.org/u/joecorall
[7] https://www.drupal.org/u/marcus_johansson
[8] https://www.drupal.org/u/akalata
[9] https://www.drupal.org/u/drumm
[10] https://www.drupal.org/u/greggles
[11] https://www.drupal.org/u/poker10
[12]  
https://new.drupal.org/contribution-record?source_link=https%3A//www.drupal.org/node/3619357

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