PT-2026-3537 · WordPress · Wp Hello Bar

Bhumividh Treloges · Published 2026-01-20 · Updated 2026-01-20 · CVE-2026-1042

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions WP Hello Bar plugin for WordPress versions prior to 1.03

Description The software is susceptible to Stored Cross-Site Scripting due to insufficient input sanitization and output escaping. This allows authenticated attackers with administrator-level access or higher to inject arbitrary web scripts. These scripts will execute when a user accesses an injected page. The vulnerable parameters are digit one and digit two.

Recommendations Update to version 1.03 or later.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-1042

Affected Products

Wp Hello Bar

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-1042 · Security Note
• https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L152 · Note
• https://downloads.wordpress.org/plugin/wp-hello-bar.1.02.zip · Note
• https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L222 · Note
• https://twitter.com/VulmonFeeds/status/2013557246538457247 · Twitter Post
• https://twitter.com/CVEnew/status/2013490575559794915 · Twitter Post
• https://plugins.trac.wordpress.org/browser/wp-hello-bar/tags/1.02/wp-hello-bar.php#L214 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/73b55486-adb8-40c6-9113-c98618d9cb00?source=cve · Note
• https://wordpress.org/plugins/wp-hello-bar · Note