CVE-2023-51372: WordPress HashBar – WordPress Notification Bar Plugin <= 1.4.1 is vulnerable to Cross Site Scripting (XSS)

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-29 · updated 2026-06-17
Weakness: CWE-79

Description

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

HashBar: through 1.4.1

References

https://patchstack.com/database/vulnerability/hashbar-wp-notification-bar/wordpress-hashbar-wordpress-notification-bar-plugin-1-4-1-cross-site-scripting-xss-vulnerability?_s_id=cve
https://patchstack.com/database/vulnerability/hashbar-wp-notification-bar/wordpress-hashbar-wordpress-notification-bar-plugin-1-4-1-cross-site-scripting-xss-vulnerability?_s_id=cve

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