What is CVE-2018-20600?

CVE-2018-20600 is a medium-severity vulnerability in Ucms Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-30.

How severe is CVE-2018-20600?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Ucms Project

CVE-2018-20600

sadmin\cedit.php in UCMS 1.4.7 has XSS via an index.php sadmin_cedit action.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-12-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Ucms Project — versions 1.4.7

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/AvaterXXX/CVEs/blob/master/ucms.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20600?: CVE-2018-20600 is a medium-severity vulnerability in Ucms Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-30.
How severe is CVE-2018-20600?: Medium severity. CVSS v3 base score is 6.1 out of 10.