CVE-2025-23578: Bastien Ho Custom Css Addons

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Custom CSS Addons css-addons allows Reflected XSS.This issue affects Custom CSS Addons: from n/a through <= 1.9.1.

Affected products

• Bastien Ho Custom Css Addons: up to and including 1.9.1

Published 2025-01-22. Last modified 2026-06-17.