JAY Login & Register <= 2.4.01 - Authentication Bypass via Cookie

2025-12-12 16:06

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Strategic Overview

Status

Patched in 2.5.01

Affected PluginJAY Login & Register

Affected Version<= 2.4.01

CVSS9.8Critical

CVECVE-2025-14440

View all JAY Login & Register vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 2.5.01, or a newer patched version --- IDENTIFIER: CWE-565 (Reliance on Cookies without Validation and Integrity Checking) The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user.

External References

https://www.cve.org/CVERecord?id=CVE-2025-14440 https://www.wordfence.com/threat-intel/vulnerabilities/id/928877a6-eeeb-4ed5-900b-9b1560e1bf87

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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