CVE-2019-18952

Name: CVE-2019-18952
Creator: NVD / NIST
Published: 2019-11-13T23:15:11.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 45.36%

Last modified Jun 17, 2026

CVE-2019-18952 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 45.36% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

45.36%

98.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Sibsoft	Xfilesharing	<= 2.5.1

References

http://packetstormsecurity.com/files/155324/Xfilesharing-2.5.1-Local-File-Inclusion-Shell-Upload.htmlExploit, Issue Tracking, Third Party Advisory
https://gist.github.com/pak0s/af9f640170aed335fdf6d110d468dbceExploit, Third Party Advisory
http://packetstormsecurity.com/files/155324/Xfilesharing-2.5.1-Local-File-Inclusion-Shell-Upload.htmlExploit, Issue Tracking, Third Party Advisory
https://gist.github.com/pak0s/af9f640170aed335fdf6d110d468dbceExploit, Third Party Advisory

Timeline

Published: Nov 13, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-18952?

How severe is CVE-2019-18952?

CVE-2019-18952 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 45.36% probability of exploitation in the next 30 days.

How do I fix CVE-2019-18952?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-18952?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST