CVE-2019-18952: Sibsoft Xfilesharing

Critical severity, CVSS 9.8. EPSS: 45.4% chance of exploitation in the next 30 days.

SibSoft Xfilesharing through 2.5.1 allows cgi-bin/up.cgi arbitrary file upload. This can be combined with CVE-2019-18951 to achieve remote code execution via a .html file, containing short codes, that is served over HTTP.

Affected products

• Sibsoft Xfilesharing: up to and including 2.5.1

Published 2019-11-13. Last modified 2026-06-17.