High severity · published May 13, 2026
CVE-2026-4609
ProfileGrid <= 5.9.8.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Group Joining
7.1
CVSS
0.2%
EPSS
No
On KEV
Description
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the pm_invite_user function in all versions up to, and including, 5.9.8.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add themselves or any registered user to any ProfileGrid group, including closed and paid groups, bypassing all authorization and payment gates.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 12% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PU
ProfileGrid – User Profiles, Groups and Communities · metagauss
through 5.9.8.4 · source: vendor
Affected product
PU
ProfileGrid – User Profiles, Groups and Communities
metagauss
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4609
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4609
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3280
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/profilegrid-user-profiles-groups-and-communities/trunk/public/class-profile-magic-public.php#L3319
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3491679/
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/c3678b4d-0cd0-4873-8cf3-90c557931f4c?source=cve
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