CVE-2025-14440

CRITICAL

JAY Login & Register <2.4.01 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-14440. PoCs published by Nxploited.

AI-analyzed exploit summary This is a functional exploit for CVE-2025-14440, targeting an authentication bypass vulnerability in the JAY Login & Register WordPress plugin. The script automates nonce extraction and session cookie acquisition to bypass authentication for any user with a known ID.

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.

Exploits (1)

nomisec WORKING POC 1 stars
by Nxploited · poc
https://github.com/Nxploited/CVE-2025-14440

This is a functional exploit for CVE-2025-14440, targeting an authentication bypass vulnerability in the JAY Login & Register WordPress plugin. The script automates nonce extraction and session cookie acquisition to bypass authentication for any user with a known ID.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: JAY Login & Register WordPress plugin <= 2.4.01
No auth needed
Prerequisites: Target URL · Valid user ID (optional)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 9.8
EPSS 0.0069
EPSS Percentile 47.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-565
Status published
Products (1)
jayarsiech/JAY Login & Register < 2.4.01
Published Dec 13, 2025
Tracked Since Feb 18, 2026