CVE-2016-20052

critical · 9.3

Snews CMS 1.7 contains an unrestricted file upload vulnerability that allows unauthenticated attackers to upload arbitrary files including PHP executables to the snews_files directory. Attackers can upload malicious PHP files through the multipart form-data upload endpoint and execute them by accessing the uploaded file path to achieve remote code execution.

9.3

CVSS

1.0%

EPSS (exploit prob.)

60th

EPSS percentile

2026-04-04

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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

Weaknesses

CWE-434

Affected products

Vendor	Product	Affected versions
snewscms	snews	<= 1.7

Check a specific version with /api/v1/cve/match.

References

https://www.exploit-db.com/exploits/40706
https://www.vulncheck.com/advisories/snews-cms-unrestricted-file-upload-via-snews-files

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2016-20052