CVE-2026-66602

HIGH 8.8

WordPress HashBar – WordPress Notification Bar plugin <= 2.0.0 - Cross Site Request Forgery (CSRF) vulnerability

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-352
Vendor	devitems
Product	hashbar – wordpress notification bar
Published	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

DevItems / HashBar – WordPress Notification Bar

n/a ≤ 2.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/hashbar-wp-notification-bar/vulnerability/wordpress-hashbar-wordpress-notification-bar-plugin-2-0-0-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Credits

Brian Willows | Patchstack Bug Bounty Program