High severity · published Oct 3, 2026
CVE-2026-96451
WordPress Ultimate Member plugin <= 2.13.1 - Privilege Escalation vulnerability
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
Authorization Bypass Through User-Controlled Key vulnerability in Ultimate Member Ultimate Member ultimate-member allows Privilege Escalation.This issue affects Ultimate Member: from n/a through 2.13.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UM
Ultimate Member · Ultimate Member
through 2.13.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-96451
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-96451
vdb-entry
https://patchstack.com/database/wordpress/plugin/ultimate-member/vulnerability/wordpress-ultimate-member-plugin-2-13-1-privilege-escalation-vulnerability?_s_id=cve
More from Ultimate Member
9.8
CVE-2026-115968
WordPress Ultimate Member plugin <= 2.13.1 - PHP Object Injection vulnerability
7.6
CVE-2026-62059
WordPress Ultimate Member plugin <= 2.13.1 - SQL Injection vulnerability
5.6
CVE-2026-96539
WordPress Ultimate Member plugin <= 2.13.1 - Privilege Escalation vulnerability
5.5
CVE-2020-37169
WordPress Plugin ultimate-member 2.1.3 Local File Inclusion
5.5
CVE-2025-47691
WordPress Ultimate Member plugin <= 2.10.3 - Arbitrary Function Call vulnerability