Ultimate Member <= 2.11.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'value'

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-13217
CVSS Medium (6.4)
Publicly Published December 16, 2025
Last Updated December 17, 2025
Researcher tiborisaak
Description

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the YouTube Video 'value' field in all versions up to, and including, 2.11.0. This is due to insufficient input sanitization and output escaping on user-supplied YouTube video URLs in the `um_profile_field_filter_hook__youtube_video()` function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that execute whenever a user accesses the injected user's profile page.

References

1 affected software package

Software Type Plugin
Software Slug ultimate-member (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 2.11.0
Patched Version
  • 2.11.1
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.