Description
WordPress Plugin Ultimate Member-User Profile, Registration, Login, Member Directory, Content Restriction & Membership is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Ultimate Member-User Profile, Registration, Login, Member Directory, Content Restriction & Membership version 2.0.51 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 2.0.52 or latest
References
https://github.com/ultimatemember/ultimatemember/issues/578
https://plugins.svn.wordpress.org/ultimate-member/trunk/readme.txt
Related Vulnerabilities
WordPress Plugin Contact Bank-Contact Form Builder for WordPress Cross-Site Scripting (2.0.225)
WebLogic Loop with Unreachable Exit Condition ('Infinite Loop') Vulnerability (CVE-2018-1324)
Python Inefficient Algorithmic Complexity Vulnerability (CVE-2025-12084)
WordPress Plugin WP Sudoku Plus Unspecified Vulnerability (1.4)