What’s Vulnerable › Vulnerabilities

CVE-2025-15027: JAY Login & Register <= 2.6.03 - Unauthenticated Privilege Escalation via jay_login_register_ajax_create_final_user

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-08 · updated 2026-06-17
• Weakness: CWE-269

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.

Affected products

• jayarsiech JAY Login & Register: through 2.6.03

References

• https://plugins.trac.wordpress.org/browser/jay-login-register/tags/2.5.01/includes/jay-login-register-ajax-handler.php#L788
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b08198a6-10e8-44ca-a1c5-8d987d85c469?source=cve

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