What is CVE-2018-16731?

CVE-2018-16731 is a critical-severity vulnerability in Chshcms Cscms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-09-08.

How severe is CVE-2018-16731?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Chshcms Cscms

CVE-2018-16731

CScms 4.1 allows arbitrary file upload by (for example) adding the php extension to the default filetype list (gif, jpg, png), and then providing a .php pathname within fileurl JSON data.

Vulnerability class: Unrestricted File Upload

EPSS: 0.015 (71.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Chshcms Cscms — versions 4.1
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-16731?: CVE-2018-16731 is a critical-severity vulnerability in Chshcms Cscms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-09-08.
How severe is CVE-2018-16731?: Critical severity. CVSS v3 base score is 9.8 out of 10.