Reported vulnerability
Frontend Login and Registration Blocks <= 1.1.1 - Unauthenticated Privilege Escalation via Account Takeover
Published 8 May 2025
Updated 15 Aug 2025
CVE-2025-3605
Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.
Does this affect my version?
Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.
Wordfence advisory
critical · CVSS 9.8The 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.
Severity vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Login, Registration and Lost Password Blocks
- Software
- plugin · frontend-login-and-registration-blocks
- Affected versions
- Start version unspecified, through 1.1.1
- Fix availability
- Fix available
- Fixed versions
- 1.2.0
Recommended action
Update to version 1.2.0, or a newer patched version
Further references (1)
Data sources and licences
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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
Read licence termsSource: Wordfence
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Get help with this issueQuestions about this vulnerability
Which versions of Login, Registration and Lost Password Blocks are affected?
Wordfence lists these affected versions: Start version unspecified, through 1.1.1. Use the version checker above to compare your installed release with this report.
Is a fix available for Login, Registration and Lost Password Blocks?
Wordfence reports a fix for this issue in Login, Registration and Lost Password Blocks. It lists these fixed versions: 1.2.0. Back up your website and test the recommended update before applying it to your live site.
Where can I find my installed plugin version?
In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.
Does an affected version mean my website has been hacked?
An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.
Other reports for the same product
These reports cover at least one of the same plugins, themes or WordPress core. Check each report’s affected versions separately.