Directory Traversal in f2e-server

published 2018-06-04 8 y ago modified 2026-06-17 4 mo ago also GHSA-g7j3-p357-cw8p , EUVD-2018-0268

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.5%; EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits: 0; none known

`f2e-server` 1.12.11 and earlier is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url. This is compounded by `f2e-server` requiring elevated privileges to run.

Patch / fix

fixed in 1 links 1

npm f2e-server 1.12.12

github.com/shy2850/node-server#12 pull request

Exploit prediction

2.50% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/shy2850/node-server/issues/10 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/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	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
npm	f2e-server	<1.12.12	1.12.12

Affected products

HackerOne f2e-server node module

Classification

Weakness

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

References

github.com /shy2850/node-server/pull/12/files
web, patch
github.com /shy2850/node-server/issues/10
web, exploit, issue-tracking, third-party-advisory
nodesecurity.io /advisories/346
third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2017-16038
advisory
github.com /advisories/GHSA-g7j3-p357-cw8p
advisory
github.com /shy2850/node-server
package
npmjs.com /advisories/346
web

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.

Summary