CVE-2025-53579: Captcha.eu

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in captcha.eu Captcha.eu captcha-eu allows Reflected XSS.This issue affects Captcha.eu: from n/a through < 1.0.61.

Affected products

• Captcha.eu Captcha.eu: up to and including 1.0.61

Published 2025-08-28. Last modified 2026-06-17.