CVE-2025-23888: Grandslambert Custom Page Extensions

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in GrandSlambert Custom Page Extensions custom-page-extensions allows Reflected XSS.This issue affects Custom Page Extensions: from n/a through <= 0.6.

Affected products

• Grandslambert Custom Page Extensions: up to and including 0.6

Published 2025-01-24. Last modified 2026-06-17.