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6.4
CVE-2025-15064: Ultimate Member allows logged-in users to inject scripts
CVE-2025-15064 · published 7 months ago
Summary
The Ultimate Member plugin for WordPress lets users add a description that can contain HTML. If the plugin’s setting to allow HTML in user descriptions is turned on, a user with at least subscriber rights can insert malicious code that runs whenever anyone views the affected page. Update the plugin beyond version 2.11.1 or disable HTML support in user descriptions to stop this.
Original advisory text
Ultimate Member <= 2.11.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via DOM Gadgets
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.
References
- https://github.com/ultimatemember/ultimatemember/pull/1774 Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2a7f070a-b67c-4e65-a92... URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15064... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-15064 Vendor Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published4 Apr 2026
Updated1 Nov 2026
First seen4 Apr 2026
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