CVE-2018-16731 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Chshcms	Cscms	4.1

Related Weaknesses (CWE)

CWE-434

References

https://github.com/AvaterXXX/CScms/blob/master/CScms_up.mdThird Party Advisory
https://www.patec.cn/newsshow.php?cid=24&id=123ExploitThird Party Advisory
https://github.com/AvaterXXX/CScms/blob/master/CScms_up.mdThird Party Advisory
https://www.patec.cn/newsshow.php?cid=24&id=123ExploitThird Party Advisory

FAQ

What is CVE-2018-16731?

CVE-2018-16731 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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.

How severe is CVE-2018-16731?

CVE-2018-16731 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-16731?

Check the references section above for vendor advisories and patch information. Affected products include: Chshcms Cscms.