CVE-2026-90976: Unknown Clean Login

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.

Affected products

• Unknown Clean Login: before 1.19 (fixed in 1.19)

Published 2026-09-18. Last modified 2026-09-18.