CVE-2025-23891: Vincent Loy Yet Another Countdown

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Vincent Loy Yet Another Countdown yacp allows DOM-Based XSS.This issue affects Yet Another Countdown: from n/a through <= 1.0.1.

Affected products

• Vincent Loy Yet Another Countdown: up to and including 1.0.1

Published 2025-01-16. Last modified 2026-06-17.