Unauthenticated File Deletion Vulnerability in QiHang Media Web Digital Signage
CVE-2020-36898

8.8HIGH

Key Information:

Vendor

Shenzhen Xingmeng Qihang Media Co., Ltd.guangzhou Hefeng Automation Technology Co., Ltd.

Status
Qihang Media Web Digital Signage
Vendor
CVE Published:
10 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-36898?

QiHang Media Web Digital Signage version 3.0.9 contains a vulnerability that allows remote attackers to delete arbitrary files on the server. This occurs through the QH.aspx endpoint, where attackers can exploit the 'data' parameter by sending crafted POST requests that include unauthorized file paths. Utilizing directory traversal sequences, attackers can circumvent authentication and gain control over file removal, potentially leading to significant disruptions in service and the integrity of web server data.

Affected Version(s)

QiHang Media Web Digital Signage 3.0.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-36898 - Proof of Concept

References

https://www.exploit-db.com/exploits/48749
exploit
http://www.howfor.com
product
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-55...
vendor-advisoryvdb-entry

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
JSON
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CVE-2020-36898 : Unauthenticated File Deletion Vulnerability in QiHang Media Web Digital Signage