What is CVE-2018-0542?

CVE-2018-0542 is a high-severity vulnerability in Lunarnight Laboratory Webproxy, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-03-22.

How severe is CVE-2018-0542?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Lunarnight Laboratory Webproxy

CVE-2018-0542

Directory traversal vulnerability in WebProxy version 1.7.8 allows an attacker to read arbitrary files via unspecified vectors.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2018-03-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.022 (82.0th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Lunarnight Laboratory Webproxy — versions version 1.7.8
Webproxy Project — versions 1.7.8

Weakness classification (CWE)

CWE-22 — Path Traversal

References

jvn.jp/en/jp/JVN87226910/index.html (VDB Entry, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-0542?: CVE-2018-0542 is a high-severity vulnerability in Lunarnight Laboratory Webproxy, classified under Path Traversal. CVSS score: 7.5/10. Published 2018-03-22.
How severe is CVE-2018-0542?: High severity. CVSS v3 base score is 7.5 out of 10.