CVE-2023-51372: Hasthemes Hashbar

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in HasThemes HashBar – WordPress Notification Bar allows Stored XSS.This issue affects HashBar – WordPress Notification Bar: from n/a through 1.4.1.

Affected products

• Hasthemes Hashbar: up to and including 1.4.1

Published 2023-12-29. Last modified 2026-06-17.