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Fencer Vulns
medium 5.3

CVE-2018-14056 json

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.

published 2018-07-15 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-5982

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

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.

Patch / fix

  • znc Debian 14, Debian 13, Debian 12 1.7.1-1

debian advisories DEBIAN-CVE-2018-14056

  • znc Ubuntu 14.04 LTS 1.2-3ubuntu0.1
  • znc Ubuntu 16.04 LTS 1.6.3-1ubuntu0.1
  • znc Ubuntu 18.04 LTS 1.6.6-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2018-14056

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • znc openSUSE Tumbleweed 1.8.2-1.11

opensuse advisories openSUSE-SU-2024:11542-1

  • znc Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 1.7.1-r0

alpine advisories ALPINE-CVE-2018-14056

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • znc Arch Linux 1.7.1-1

arch linux advisories AVG-737

Exploit prediction

2.02% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns 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.