What is CVE-2017-12978?

CVE-2017-12978 is a medium-severity vulnerability in Cacti, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-08-21.

How severe is CVE-2017-12978?

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

XSS in Cacti

CVE-2017-12978

lib/html.php in Cacti before 1.1.18 has XSS via the title field of an external link added by an authenticated user.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-08-21 · 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: 0.008 (54.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Cacti

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/Cacti/cacti/commit/9c610a7a4e29595dcaf7d7082134e4b89619ea24 (Patch, Third Party Advisory, Issue Tracking)
www.securitytracker.com/id/1039226 (vdb-entry)
github.com/Cacti/cacti/issues/918 (Patch, Third Party Advisory, Issue Tracking)
github.com/Cacti/cacti/blob/develop/docs/CHANGELOG (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-12978?: CVE-2017-12978 is a medium-severity vulnerability in Cacti, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2017-08-21.
How severe is CVE-2017-12978?: Medium severity. CVSS v3 base score is 5.4 out of 10.