CVE-2025-11748: CWE-639 Authorization Bypass Through User-Controlled Key in itthinx Groups
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.
AI Analysis
Technical Summary
CVE-2025-11748 is an authorization bypass vulnerability in the itthinx Groups WordPress plugin (versions up to 3.7.0). The issue arises from inadequate validation of the 'group_id' parameter in the group_join function, which is user-controlled. This flaw permits authenticated users with at least Subscriber privileges to join unauthorized groups by manipulating this parameter. The vulnerability does not impact confidentiality or availability but allows limited unauthorized modification of group memberships.
Potential Impact
An attacker with Subscriber-level access or higher can exploit this vulnerability to join groups they are not authorized to join, potentially bypassing intended access controls. There is no direct impact on confidentiality or availability reported. The integrity impact is limited to unauthorized group membership registration.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Users of the itthinx Groups plugin should monitor the vendor's advisories for updates. Until a fix is released, consider restricting Subscriber-level access or implementing additional access controls around group membership functionality to mitigate unauthorized group joining.
CVE-2025-11748: CWE-639 Authorization Bypass Through User-Controlled Key in itthinx Groups
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-11748 is an authorization bypass vulnerability in the itthinx Groups WordPress plugin (versions up to 3.7.0). The issue arises from inadequate validation of the 'group_id' parameter in the group_join function, which is user-controlled. This flaw permits authenticated users with at least Subscriber privileges to join unauthorized groups by manipulating this parameter. The vulnerability does not impact confidentiality or availability but allows limited unauthorized modification of group memberships.
Potential Impact
An attacker with Subscriber-level access or higher can exploit this vulnerability to join groups they are not authorized to join, potentially bypassing intended access controls. There is no direct impact on confidentiality or availability reported. The integrity impact is limited to unauthorized group membership registration.
Mitigation Recommendations
No official patch or fix is currently available for this vulnerability. Users of the itthinx Groups plugin should monitor the vendor's advisories for updates. Until a fix is released, consider restricting Subscriber-level access or implementing additional access controls around group membership functionality to mitigate unauthorized group joining.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-10-14T14:48:21.935Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 690ebeaf3a8fd010ecf6420c
Added to database: 11/8/2025, 3:53:19 AM
Last enriched: 4/9/2026, 9:09:02 AM
Last updated: 5/10/2026, 5:21:55 AM
Views: 89
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