CVE-2020-36898 QiHang Media Web Digital Signage 3.0.9 Unauthenticated Arbitrary File Deletion

High 8.8 Published 10 Dec 2025 Updated 11 Dec 2025

Remote attackers can delete arbitrary files via directory traversal in the QH.aspx endpoint without authentication, potentially compromising system integrity.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-36898?

CVE-2020-36898 is a high-severity path traversal vulnerability in Shenzhen Xingmeng Qihang Media Co., Ltd.Guangzhou Hefeng Automation Technology Co., Ltd. QiHang Media Web Digital Signage, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-22

Which versions are affected by CVE-2020-36898?

It affects 1 product.

Products include Howfor Qihang Media Web Digital Signage.

How do I fix CVE-2020-36898?

No fix has been published for CVE-2020-36898 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-36898 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36898 exists.

Sources

Also known as GHSA-wc7f-fvgq-374p.