CVE-2025-11748
MEDIUMGroups plugin for WordPress <3.7.0 - Insecure Direct Object Reference
Title source: llmDescription
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.
References (3)
Core 3
Core References
Scores
CVSS v3
4.3
EPSS
0.0003
EPSS Percentile
9.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (1)
itthinx/Groups
< 3.7.0
Published
Nov 08, 2025
Tracked Since
Feb 18, 2026