What’s Vulnerable › Vulnerabilities

CVE-2025-3607: Frontend Login and Registration Blocks <= 1.0.8 - Authenticated (Subscriber+) Privilege Escalation via Password Reset

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-24 · updated 2026-06-17
• Weakness: CWE-620

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, 1.0.8. This is due to the plugin not properly validating a user's identity prior to updating a password. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change arbitrary user's passwords, including administrators, and leverage that to gain access to their account.

Affected products

• arkenon Login, Registration and Lost Password Blocks: through 1.0.8

References

• https://plugins.trac.wordpress.org/browser/frontend-login-and-registration-blocks/trunk/inc/class-flr-blocks-lost-password.php#L115
• https://plugins.trac.wordpress.org/changeset/3325911/#file10
• https://plugins.trac.wordpress.org/changeset/3325911/#file35
• https://www.wordfence.com/threat-intel/vulnerabilities/id/b06ce1e4-5cfb-415d-ad09-db194d6b4354?source=cve

Get alerted when CVE-2025-3607 or the next vulnerability affects your stack