Arbitrary file upload in Sibsoft Xfilesharing
CVE-2019-18952
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.454 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.454 · newest: 0.454 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gist.github.com/pak0s/af9f640170aed335fdf6d110d468dbce (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/155324/Xfilesharing-2.5.1-Local-File-Inclusion-Sh… (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2019-18952?
- CVE-2019-18952 is a critical-severity vulnerability in Sibsoft Xfilesharing, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2019-11-13.
- How severe is CVE-2019-18952?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-18952 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.