Simple Klaro - Moderately critical - Cross Site Scripting - SA-CONTRIB-2025-071

Project: Simple KlaroDate: 2025-May-28Security risk: Moderately critical 13 ∕ 25 AC:Complex/A:User/CI:Some/II:Some/E:Theoretical/TD:AllVulnerability: Cross Site ScriptingAffected versions: <1.10.0CVE IDs: CVE-2025-48918Description: The "Simple Klaro" module adds the "Klaro! A Simple Consent Manager" to your website and allows you to configure it according to your needs in the Drupal backend.
The module doesn't sufficiently mark its administrative permission as restricted, creating the possibility for the permission to be granted too broadly. A malicious admin could execute a Cross Site Scripting (XSS) attack.
This vulnerability is mitigated by the fact that an attacker must have a role with the "administer simple klaro" permission.Solution: Install the latest version:

• If you use the "Simple Klaro" module for Drupal 9.x/10.x/11.x, upgrade to Simple Klaro 1.10.0

Reported By: 

• Pierre Rudloff (prudloff)

Fixed By: 

• Norman Kämper-Leymann (norman.lol)

Coordinated By: 

• Juraj Nemec (poker10) of the Drupal Security Team
• Pierre Rudloff (prudloff)
• Cathy Theys (yesct) of the Drupal Security Team