PT-2026-51678 · Manuelpadillac · Wp Customize Login Page

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-6292

Mitre

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

The MP Customize Login Page plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to and including 1.0. This is due to a completely broken nonce validation in the enter mpclp login options() function, which contains an inverted check (if wp verify nonce(...) { return false; }) and is missing the required action parameter for wp verify nonce(). As a result, the nonce check is effectively dead code: it never blocks malicious requests because a CSRF-supplied empty/invalid nonce always returns false, satisfying the inverted condition to continue execution. Furthermore, the settings-update handler is hooked on init without any capability check. This makes it possible for unauthenticated attackers to modify all plugin setting, including login page background, logo URL, image dimensions, button colors, and login message, by tricking a logged-in administrator into submitting a crafted request.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-6292

Affected Products

Wp Customize Login Page

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-6292 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/b9216875-8cb6-45a7-b23b-19d13f8b49dc?source=cve · Note
• https://plugins.trac.wordpress.org/browser/mp-customize-login-page/trunk/class.mp-customize-login-page.php#L13 · Note
• https://plugins.trac.wordpress.org/browser/mp-customize-login-page/tags/1.0/class.mp-customize-login-page.php#L13 · Note
• https://plugins.trac.wordpress.org/browser/mp-customize-login-page/tags/1.0/class.mp-customize-login-page.php#L103 · Note
• https://plugins.trac.wordpress.org/browser/mp-customize-login-page/trunk/class.mp-customize-login-page.php#L103 · Note