Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership: Cross-site scripting
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership is affected by cross-site scripting. Exploitation requires at least subscriber-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership
- Plugin slug
ultimate-member- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Dec 17, 2025
This CVE was published Dec 17, 2025 and is one of 56 known issues for this plugin.
Update, patch or deactivate.
Update Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N