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CVE-2026-6292

MEDIUM 4.3 CVSS 3.1
Published
June 24, 2026
Last modified
June 25, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-352
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • manuelpadillac MP Customize Login Page — Up to and including 1.0

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/mp-customize-login-page/tags/1.0/class.mp-customize-login-page.php#L103
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/mp-customize-login-page/tags/1.0/class.mp-customize-login-page.php#L13
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/mp-customize-login-page/trunk/class.mp-customize-login-page.php#L103
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/mp-customize-login-page/trunk/class.mp-customize-login-page.php#L13
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/b9216875-8cb6-45a7-b23b-19d13f8b49dc?source=cve
  • nvd.nist.gov Official NVD record