CVE-2024-13864: Yaidier Countdown Timer

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

The Countdown Timer WordPress plugin through 1.0 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Affected products

• Yaidier Countdown Timer: version 1.0 only

Published 2025-03-11. Last modified 2026-06-17.