What is CVE-2018-14056?

CVE-2018-14056 is a medium-severity vulnerability in Znc, classified under Path Traversal. CVSS score: 5.3/10. Published 2018-07-15.

How severe is CVE-2018-14056?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Path Traversal in Znc

CVE-2018-14056

ZNC before 1.7.1-rc1 is prone to a path traversal flaw via ../ in a web skin name to access files outside of the intended skins directories.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2018-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.020 (80.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Znc
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

github.com/znc/znc/commit/a4a5aeeb17d32937d8c7d743dae9a4cc755ce773 (Patch, Third Party Advisory)
www.debian.org/security/2018/dsa-4252 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/201807-03 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2018-14056?: CVE-2018-14056 is a medium-severity vulnerability in Znc, classified under Path Traversal. CVSS score: 5.3/10. Published 2018-07-15.
How severe is CVE-2018-14056?: Medium severity. CVSS v3 base score is 5.3 out of 10.