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Fencer Intel
medium 5.4

CVE-2018-16484 json

Cross-Site Scripting in m-server

published 2019-02-01 7 y ago modified 2026-06-17 4 mo ago also GHSA-gmxv-xf2q-6j8m , EUVD-2019-0295

cvss
5.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

A XSS vulnerability was found in module m-server <1.4.2 that allows malicious Javascript code or HTML to be executed, due to the lack of escaping for special characters in folder names.

Patch / fix

  • npm m-server 1.4.2
  • m-server_project m-server 1.4.2

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/319794 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm m-server
<1.4.2
1.4.2

Affected products

  • HackerOne m-server

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.