CVE-2020-36898: Howfor Qihang Media Web Digital Signage

Critical severity, CVSS 9.1. EPSS: 1.7% chance of exploitation in the next 30 days.

QiHang Media Web Digital Signage 3.0.9 contains an unauthenticated file deletion vulnerability in the QH.aspx endpoint that allows remote attackers to delete files without authentication. Attackers can exploit the 'data' parameter by sending a POST request with file paths to delete arbitrary files with web server permissions using directory traversal sequences.

Affected products

• Howfor Qihang Media Web Digital Signage: version 3.0.9 only

Published 2025-12-10. Last modified 2026-06-17.