High severity · published Aug 28, 2026
CVE-2026-79996
User Registration & Membership < 5.2.6 - Authenticated Privilege Escalation via Login Settings
7.2
CVSS
0.5%
EPSS
No
On KEV
Description
The User Registration & Membership WordPress plugin before 5.2.6 does not perform a capability check when saving its login settings, allowing authenticated users who have been granted a User Registration & Membership WordPress plugin before 5.2.6 management capability but not full administrator access to change arbitrary site options and escalate their privileges to administrator.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UR
User Registration & Membership ·
before 5.2.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-79996
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-79996
wpscan.com
https://wpscan.com/vulnerability/609bbb7c-c19a-4c72-8cef-95598a2cfc0d/
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