CVE-2026-18469: Unknown Login & Register Forms

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

The Login & Register Forms WordPress plugin before 4.0.2 does not enforce its password reset attempt limit against a server-derived value, keying both the verification code and the per-source attempt counter on client-controlled data, allowing unauthenticated attackers to reset the limit at will and brute-force the code to take over any account, including administrators, when the verification-code reset mode is enabled.

Affected products

• Unknown Login & Register Forms: from 3.2.5, before 4.0.2 (fixed in 4.0.2)

Published 2026-08-10. Last modified 2026-08-26.