CVE-2025-22558: Marcus C. J. Hartmann Mcjh Button Shortcode

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcus C. J. Hartmann mcjh button shortcode mcjh-button-shortcode allows Stored XSS.This issue affects mcjh button shortcode: from n/a through <= 1.6.4.

Affected products

• Marcus C. J. Hartmann Mcjh Button Shortcode: up to and including 1.6.4

Published 2025-01-07. Last modified 2026-06-17.