CVE-2026-66602: Devitems Hashbar – WordPress Notification Bar

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Cross-Site Request Forgery (CSRF) vulnerability in DevItems HashBar – WordPress Notification Bar allows Cross Site Request Forgery. This issue affects HashBar – WordPress Notification Bar: from n/a through 2.0.0.

Affected products

• Devitems Hashbar – WordPress Notification Bar: up to and including 2.0.0

Published 2026-08-18. Last modified 2026-08-20.