Groups <= 3.7.0 — Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Group Join
CVE-2025-11748Published · Updated Action summary
Affected: ≤3.7.0Update to 3.8.0 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Groups – Memberships and Access Control groups
- Affected≤ 3.7.0
- Patched in3.8.0
Update to 3.8.0 or newer.
You are affected if you run ≤ 3.7.0. Version 3.8.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Groups – Memberships and Access Control.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 3.8.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Groups – Memberships and Access Control to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to shark3y.
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Groups – Memberships and Access Control
All 3| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.8 | Authenticated (Subscriber+) Privilege Escalation via 'groups_join' Shortcode ≤4.6.0Update to 4.7.0 | CVE-2026-77203 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via 'groups_group_info' Shortcode ≤3.10.0Update to 3.11.0 | CVE-2026-0549 |
- High8.8Authenticated (Subscriber+) Privilege Escalation via 'groups_join' Shortcode
≤4.6.0Update to 4.7.0
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'groups_group_info' Shortcode
≤3.10.0Update to 3.11.0
Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.