CVE-2021-37598: Wpcerber Wp Cerber

Medium severity, CVSS 5.3. EPSS: 2.4% chance of exploitation in the next 30 days.

WP Cerber before 8.9.3 allows bypass of /wp-json access control via a trailing ? character.

Affected products

• Wpcerber Wp Cerber: before 8.9.3 (fixed in 8.9.3)

Published 2021-08-19. Last modified 2026-06-17.