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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| arkenon | Login, Registration and Lost Password Blocks | ≤ 1.1.1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- WordPress Frontend Login and Registration Blocks Plugin 1.0.7 - Privilege Escalation EDB-52291 · webapps · May 13, 2025
GitHub 1 repository
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Nxploited/CVE-2025-3605 ★ 2 · May 9, 2025
WordPress Frontend Login and Registration Blocks Plugin <= 1.0.7 is vulnerable to Privilege Escalation
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- WordPress Frontend Login and Registration Blocks Plugin 1.0.7 - Privilege Escalation http/cves/2025/CVE-2025-3605.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.