What is CVE-2018-20682?

CVE-2018-20682 is a medium-severity vulnerability in Fork-Cms Fork Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-01-09.

How severe is CVE-2018-20682?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Fork-Cms Fork Cms

CVE-2018-20682

Fork CMS 5.0.6 allows stored XSS via the private/en/settings facebook_admin_ids parameter (aka "Admin ids" input in the Facebook section).

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Fork-Cms Fork Cms — versions 5.0.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.netsparker.com/web-applications-advisories/ns-18-032-stored-cross-site-scri… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20682?: CVE-2018-20682 is a medium-severity vulnerability in Fork-Cms Fork Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-01-09.
How severe is CVE-2018-20682?: Medium severity. CVSS v3 base score is 5.4 out of 10.