CVE-2025-14440
CRITICAL
9.8
CVSS 3.1
Description
The JAY Login & Register plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.4.01. This is due to incorrect authentication checking in the 'jay_login_register_process_switch_back' function with the 'jay_login_register_process_switch_back' cookie value. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, if they have access to the user id.
Affected WordPress components
-
JAY Login & Register Plugin · jay-login-registerUp to and including 2.4.01View on WordPress.org
A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.
Affected products and versions
- jayarsiech JAY Login & Register — Up to and including 2.4.01
References
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/jay-login-register/tags/2.4.01/includes/jay-login-register-user-switching.php#L98
- plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3418754/
- www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/928877a6-eeeb-4ed5-900b-9b1560e1bf87?source=cve
- nvd.nist.gov Official NVD record