CVE-2026-96451 HIGH

CVE-2026-96451: WordPress Ultimate Member plugin <= 2.13.1 - Privilege Escalation vulnerability

Vendor Ultimate Member

Product Ultimate Member

Weakness CWE-639 · IDOR

Published October 3, 2026

Last update October 3, 2026

View on NVD All CVEs

CVSS base score

8.8/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 3, 2026 CVE published

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-96451 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/639.html AskarLabs — CWE-639 write-up Authorization Bypass Through User-Controlled Key

Related vulnerabilities

04Related CVE

CVE-2026-10041 WCFM – Frontend Manager for WooCommerce <= 6.7.27 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Vendor Data Manipulation via Multiple AJAX Handlers CVE-2026-57680 WordPress Kirki plugin <= 6.0.11 - Insecure Direct Object References (IDOR) vulnerability CVE-2026-3235 WP Data Access – No-Code App Builder with Tables, Forms, Charts & Maps <= 5.5.68 - Unauthenticated Insecure Direct Object Reference to Data Access CVE-2026-5523 Divi Form Builder <= 5.1.8 - Authenticated (Subscriber+) Missing Authorization to Privilege Escalation via User Profile Update Form CVE-2026-12418 User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.3.7 - Insecure Direct Object Reference to Unauthenticated Arbitrary Post Modification via 'wpuf_files_data' Parameter