Vulnerability Description
The Groups plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.0 via the 'group_id' parameter of the group_join function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to register for groups other than ones set in the shortcode.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/groups/trunk/lib/views/class-groups-s
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d0f6d28a-d5ca-4700-bc6
FAQ
What is CVE-2025-11748?
CVE-2025-11748 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The Groups plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.0 via the 'group_id' parameter of the group_join function due to missing val...
How severe is CVE-2025-11748?
CVE-2025-11748 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-11748?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.