CVE-2024-4000 MEDIUM

CVE-2024-4000: WordPress Header Builder Plugin – Pearl <= 1.3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Vendor Stylemix
Product Pearl – Header Builder
Weakness CWE-79 · XSS
Published May 2, 2024
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The WordPress Header Builder Plugin – Pearl plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'stm_hb' shortcode in all versions up to, and including, 1.3.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Key dates

02Disclosure timeline

May 2, 2024 CVE published
April 8, 2026 Record updated