What is CVE-2018-7198?

CVE-2018-7198 is a medium-severity vulnerability in Octobercms October, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-02-18.

How severe is CVE-2018-7198?

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

XSS in Octobercms October

CVE-2018-7198

October CMS through 1.0.431 allows XSS by entering HTML on the Add Posts page.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-02-18 · 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: 0.023 (83.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Octobercms October

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.exploit-db.com/exploits/44144/ (Exploit, VDB Entry, Third Party Advisory, exploit)
securitywarrior9.blogspot.com/2018/02/html-injection-october-cms.html (Third Party Advisory)

Frequently asked questions

What is CVE-2018-7198?: CVE-2018-7198 is a medium-severity vulnerability in Octobercms October, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-02-18.
How severe is CVE-2018-7198?: Medium severity. CVSS v3 base score is 6.1 out of 10.