Authentication Bypass in JAY Login & Register Plugin for WordPress
CVE-2025-14440

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Jay Login & Register
Vendor
CVE Published:
13 December 2025

What is CVE-2025-14440?

The JAY Login & Register plugin for WordPress is vulnerable to an authentication bypass issue due to improper cookie handling in its processing function. This flaw allows unauthenticated attackers to gain access as any existing user on the site, including potentially vulnerable administrator accounts, simply by manipulating specific cookie values. Users of affected versions are advised to apply updates to ensure their sites remain secure.

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Deploy the Patch

Affected Version(s)

JAY Login & Register * <= 2.4.01

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/jay-login-regi...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kenneth Dunn
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