CVE-2025-15027 JAY Login & Register <= 2.6.03 - Unauthenticated Privilege Escalation via jay_login_register_ajax_create_final_user
Unauthenticated attackers can escalate privileges to administrator by exploiting arbitrary user meta updates in the JAY Login & Register plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15027?
CVE-2025-15027 is a critical vulnerability in jayarsiech JAY Login & Register, published on 8 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The JAY Login & Register plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.6.03. This is due to the plugin allowing a user to update arbitrary user meta through the 'jay_login_register_ajax_create_final_user' function. This makes it possible for unauthenticated attackers to elevate their privileges to that of an administrator.
Weakness: CWE-269
Which versions are affected by CVE-2025-15027?
How do I fix CVE-2025-15027?
No fix has been published for CVE-2025-15027 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-15027 being exploited?
There is no known exploitation of CVE-2025-15027 in the wild and no public exploit code.
Sources
Also known as GHSA-q4jc-jqf3-rhwm.