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Fencer Intel
medium 5.4

CVE-2017-12978 json

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

published 2017-08-21 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-4496

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

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

Patch / fix

  • cacti Debian 14, Debian 13, Debian 12 1.1.18+ds1-1

debian advisories DEBIAN-CVE-2017-12978

  • cacti openSUSE Tumbleweed 1.2.18-1.2

opensuse advisories openSUSE-SU-2024:10670-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-12978 updated cvss 6.1

cacti: cross-site scripting vulnerability in lib/html.php

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.