What is CVE-2021-38728?

CVE-2021-38728 is a medium-severity vulnerability in Sem-Cms Semcms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-10-28.

How severe is CVE-2021-38728?

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

XSS in Sem-Cms Semcms

CVE-2021-38728

SEMCMS SHOP v 1.1 is vulnerable to Cross Site Scripting (XSS) via Ant_M_Coup.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (37.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Sem-Cms Semcms — versions 1.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.sem-cms.cn/wenda/view-56.html (Vendor Advisory)
github.com/BigTiger2020/SCSHOP/blob/main/semcms-9.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-38728?: CVE-2021-38728 is a medium-severity vulnerability in Sem-Cms Semcms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-10-28.
How severe is CVE-2021-38728?: Medium severity. CVSS v3 base score is 6.1 out of 10.