Stored Cross-Site Scripting Vulnerability in Ultimate Member Plugin for WordPress
CVE-2026-116621

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Vendor
CVE Published:
7 November 2026

What is CVE-2026-116621?

The Ultimate Member plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to inadequate input sanitization and output escaping in the 'pm_note' parameter, as well as any custom Textarea metakey with HTML disabled. This vulnerability affects all versions up to and including 2.14.1. Authenticated users with subscriber-level access can exploit this weakness to inject arbitrary web scripts. When users interact with the modified profile page, these scripts will execute, potentially leading to unauthorized actions or information disclosure.

Affected Version(s)

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin 0 <= 2.14.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/ultimate-membe...
https://plugins.trac.wordpress.org/browser/ultimate-membe...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

UKO
.