CVE-2025-15064 Ultimate Member <= 2.11.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via DOM Gadgets
Authenticated attackers can inject arbitrary scripts via user descriptions in Ultimate Member plugin when HTML support is enabled, leading to stored XSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15064?
CVE-2025-15064 is a medium-severity cross-site scripting vulnerability in ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin, published on 4 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the user description field in all versions up to, and including, 2.11.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability is only exploitable when "HTML support for user description" is enabled in Ultimate Member settings.
Weakness: CWE-79
Which versions are affected by CVE-2025-15064?
How do I fix CVE-2025-15064?
No fix has been published for CVE-2025-15064 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-15064 being exploited?
There is no known exploitation of CVE-2025-15064 in the wild and no public exploit code.
Sources
Also known as GHSA-px95-m842-v7xq.