CVE-2025-13220
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
The Ultimate Member plugin for WordPress in versions up to and including 2.11.0 is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode attributes due to insufficient input sanitization and output escaping. This allows authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages.
Risk Assessment
An authenticated attacker with Contributor privileges can inject malicious scripts that execute in other users' browsers, including administrators, potentially leading to session or account compromise.
Recommendation
Update the Ultimate Member plugin to a version later than 2.11.0 that contains the fix for this vulnerability.
Other vulnerabilities in Ultimate Member WordPress plugin
See all- CVE-2023-3460Critical
The Ultimate Member WordPress plugin before version 2.6.7 does not prevent visitors from creating user accounts with arbitrary capabilities, effectively allowing attackers to create administrator accounts at will.
- CVE-2026-19423High
The Ultimate Member WordPress plugin before version 2.13.0 does not validate a submitted role selection when it cannot resolve the set of roles a profile form permits, and screens the value against the site's registered role names rather than against the form's own allow-list. This allows unauthenticated users who register through the plugin's own form to grant themselves arbitrary capabilities and reach administrator-equivalent access.
Original NVD description (English source)
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 plugin's shortcode attributes in all versions up to, and including, 2.11.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS