Description

The Flag clear module allows administrators to remove user flags for content. This functionality is often useful in user-submission use-cases, where users do not necessarily need to unflag things on their own.

The module doesn't sufficiently protect from CSRF attacks. The unflagging links do not include a token.

This vulnerability is mitigated by the fact that an attacker must be targeting users with the 'clear flags' role. They must also discover a valid combination of flag, content and user IDs for flagged content.

CVE identifier(s) issued

  • A CVE identifier will be requested, and added upon issuance, in accordance with Drupal Security Team processes.

Versions affected

  • All Flag clear module versions prior to 7.x-2.0.

Drupal core is not affected. If you do not use the contributed Flag clear module, there is nothing you need to do.

Solution

Install the latest version:

Also see the Flag clear project page.

Reported by

Fixed by

Coordinated by

Contact and More Information

The Drupal security team can be reached at security at drupal.org or via the contact form at https://www.drupal.org/contact.

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