Software intelligence
Important: Hashbar Wp Notification Bar appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works
Tracked advisories
3
Latest advisory
18 August 2026
CISA KEV matches
0
In this WordPress feed
WordPress slug
hashbar-wp-notification-bar
Plugin
This catalog lists 3 known advisories affecting Hashbar Wp Notification Bar. The most recent was published on 18 August 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.
HashBar – Announcement, Notification Bar & Popup Campaign <= 2.0.0 - Cross-Site Request Forgery
May trick authenticated users into performing unintended actions.
Published 18 August 2026
HashBar – WordPress Notification Bar <= 1.4.1 - Authenticated (Author+) Stored Cross-Site Scripting
May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Published 26 December 2023
HashBar – WordPress Notification Bar <= 1.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
May allow attackers to run scripts in visitors' browsers or hijack admin sessions.
Published 27 December 2022
Known Hashbar Wp Notification Bar advisories published by month.
CVE-2026-66602 · Published 18 August 2026
Affected versions: ≤ 2.0.0
CVE-2023-51372 · Published 26 December 2023
Affected versions: < 1.4.2
CVE-2022-4650 · Published 27 December 2022
Affected versions: ≤ 1.3.5
SiteRespond Defence matches your installed Hashbar Wp Notification Bar version against this catalog when the Defence plugin is connected to your WordPress site.