Is CVE-2020-36898 actively exploited?

No active exploitation of CVE-2020-36898 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-36898 be exploited remotely?

Yes. CVE-2020-36898 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-36898?

CVE-2020-36898 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2020-36898

CWE-22Published: December 10, 2025· Updated: Jun 17, 2026

9.1

CVSS v3.1

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.

NVD Source

Risk Analysis

This vulnerability allows an unauthenticated attacker to delete arbitrary files on the server by sending a specially crafted request. Given the critical CVSS score of 9.1, this poses a significant risk to system availability and integrity.

There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Users should upgrade QiHang Media Web Digital Signage to a version that addresses this flaw. Implement strict input validation to prevent directory traversal sequences.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-36898 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.1.