CVE-2018-3729 json
Path Traversal in localhost-now
published 2018-06-07 8 y ago modified 2026-06-17 4 mo ago also GHSA-2gjg-5x33-mmp2 , EUVD-2018-0206
- 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 80%
- public exploits
- 0
- none known
Summary
localhost-now node module suffers from a Path Traversal vulnerability due to lack of validation of file, which allows a malicious user to read content of any file with known path.
Patch / fix
Exploit prediction
1.99% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/312889 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 | localhost-now | <1.0.2 |
1.0.2 |
Affected products
- HackerOne localhost-now node module
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/DCKT/localhost-now/commit/30b004c7f145d677df8800a106c2edc982313995#diff-b9cfc7f2cdf78a7f4b91a753d10865a2
web
-
hackerone.com
/reports/312889
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2018-3729
advisory
-
github.com
/advisories/GHSA-2gjg-5x33-mmp2
advisory
-
npmjs.com
/advisories/582
web
Sources
- CVE List CVE-2018-3729
- GitHub Advisory GHSA-2gjg-5x33-mmp2
- NVD CVE-2018-3729
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.