Stored Cross-Site Scripting Vulnerability in Ultimate Member Plugin for WordPress
CVE-2025-13220

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin
Vendor
CVE Published:
21 December 2025

What is CVE-2025-13220?

The Ultimate Member plugin for WordPress is susceptible to stored cross-site scripting via its shortcode attributes across all versions up to, and including, version 2.11.0. This vulnerability arises from inadequate input sanitization and output escaping. Authenticated attackers with Contributor-level access or higher can utilize this flaw to inject arbitrary web scripts into pages. These scripts could execute in the browsers of users accessing the compromised pages, potentially leading to unauthorized actions or data exposure.

Affected Version(s)

Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin * <= 2.11.0

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

Muhammad Yudha - DJ
JSON
.
CVE-2025-13220 : Stored Cross-Site Scripting Vulnerability in Ultimate Member Plugin for WordPress