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CVE-2025-3605

CRITICAL 9.8 CVSS 3.1
Published
May 9, 2025
Last modified
June 17, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-639
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Frontend Login and Registration Blocks plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.1.1. This is due to the plugin not properly validating a user's identity prior to updating their details like email via the flr_blocks_user_settings_handle_ajax_callback() function. This makes it possible for unauthenticated attackers to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.

Affected WordPress components

  • Login, Registration and Lost Password Blocks Plugin · frontend-login-and-registration-blocks
    Confirmed match Active
    Up to and including 1.1.1
    View on WordPress.org

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

  • arkenon Login, Registration and Lost Password Blocks — Up to and including 1.1.1

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/frontend-login-and-registration-blocks/trunk/inc/class-flr-blocks-user-settings.php#L59
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/0c11668c-6dc3-4539-b2be-bf6528bed73e?source=cve
  • nvd.nist.gov Official NVD record