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...

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
Dec 21, 2025
Vulnerability Reserved
Nov 14, 2025

Credit

Muhammad Yudha - DJ

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