Frontend Login and Registration Blocks <= 1.1.1 - Unauthenticated Privilege Escalation via Account Takeover
| CVE | CVE-2025-3605 |
|---|---|
| CVSS | 9.8 (Critical) |
| Publicly Published | May 8, 2025 |
| Last Updated | August 15, 2025 |
| Researcher |
kr0d
|
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.
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Vulnerability Details for Login, Registration and Lost Password Blocks
| Software Type | Plugin |
|---|---|
| Software Slug | frontend-login-and-registration-blocks (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 1.2.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Login, Registration and Lost Password Blocks
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Frontend Login and Registration Blocks <= 1.0.8 - Authenticated (Subscriber+) Privilege Escalation via Password Reset | CVE-2025-3607 | kr0d | April 23, 2025 |
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