What is CVE-2018-17321?

CVE-2018-17321 is a medium-severity vulnerability in Seacms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-22.

How severe is CVE-2018-17321?

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

XSS in Seacms

CVE-2018-17321

An issue was discovered in SeaCMS 6.64. XSS exists in admin_datarelate.php via the time or maxHit parameter in a dorandomset action.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-09-22 · 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 (51.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.0% 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

Seacms — versions 6.64

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

secwk.blogspot.com/2018/09/seacms-664-xss-vulnerability_14.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-17321?: CVE-2018-17321 is a medium-severity vulnerability in Seacms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-22.
How severe is CVE-2018-17321?: Medium severity. CVSS v3 base score is 6.1 out of 10.