What is CVE-2018-12101?

CVE-2018-12101 is a medium-severity vulnerability in Clippercms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-15.

How severe is CVE-2018-12101?

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

XSS in Clippercms

CVE-2018-12101

CMS Clipper 1.3.3 has XSS in the Security tab search, User Groups, Resource Groups, and User/Resource Group Links fields.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-08-15 · 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: 0.013 (68.4th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Clippercms — versions 1.3.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/ClipperCMS/ClipperCMS/issues/487 (Exploit, Third Party Advisory)
github.com/ClipperCMS/ClipperCMS/issues/488 (Exploit, Third Party Advisory)
github.com/ClipperCMS/ClipperCMS/issues/496 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-12101?: CVE-2018-12101 is a medium-severity vulnerability in Clippercms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2019-08-15.
How severe is CVE-2018-12101?: Medium severity. CVSS v3 base score is 5.4 out of 10.