CVE-2020-36898

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.

CVSS v4.0

8.8 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS

1.76% chance of exploitation in the next 30 days, 76th percentile

Published

2025-12-10

Updated

2025-12-11

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48749

References

• CVE Record
• NVD entry

Related

• CVE-2020-36897
• CVE-2020-36899
• CVE-2020-36896
• CVE-2020-36900
• CVE-2020-36895
• CVE-2020-36901