CVE-2025-14440

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/13/2025

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-565

References

https://plugins.trac.wordpress.org/browser/jay-login-register/tags/2.4.01/includes/jay-login-register-user-switching.php#L98(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset/3418754/(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/928877a6-eeeb-4ed5-900b-9b1560e1bf87?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.