What is CVE-2018-17126?

CVE-2018-17126 is a critical-severity vulnerability in Chshcms Cscms, classified under Code Injection. CVSS score: 9.8/10. Published 2018-09-17.

How severe is CVE-2018-17126?

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

RCE in Chshcms Cscms

CVE-2018-17126

CScms 4.1 allows remote code execution, as demonstrated by 1');eval($_POST[cmd]);# in Web Name to upload\plugins\sys\Install.php.

Vulnerability class: RCE (Remote Code Execution)

Published 2018-09-17 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.032 (87.8th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000

Affected products

Chshcms Cscms — versions 4.1

Weakness classification (CWE)

CWE-94 — Code Injection

References

github.com/AvaterXXX/CScms/blob/master/CScms_xss.md (Exploit, Third Party Advisory)
www.patec.cn/newsshow.php (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-17126?: CVE-2018-17126 is a critical-severity vulnerability in Chshcms Cscms, classified under Code Injection. CVSS score: 9.8/10. Published 2018-09-17.
How severe is CVE-2018-17126?: Critical severity. CVSS v3 base score is 9.8 out of 10.