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Fencer Intel
high 7.5

CVE-2018-3787 json

simplehttpserver allows directory traversal and file listing

published 2018-08-31 8 y ago modified 2026-06-17 4 mo ago also GHSA-gpvj-q7fp-jcch , EUVD-2018-0456

cvss
7.5
version 3.1, 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

Path traversal in simplehttpserver <v0.2.1 allows listing any file on the server.

Patch / fix

  • npm simplehttpserver 0.2.1
  • simplehttpserver_project simplehttpserver 0.2.1

Exploit prediction

2.04% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/357109 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
npm simplehttpserver
<0.2.1
0.2.1

Affected products

  • HackerOne simplehttpserver

Classification

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

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.