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Fencer Intel
high 7.5

CVE-2017-16203 json

coffe-script is malware

published 2018-06-07 8 y ago modified 2026-06-17 4 mo ago also GHSA-j49g-mp79-5vm5 , EUVD-2018-0405

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

The coffe-script module exfiltrates sensitive data such as a user's private SSH key and bash history to a third party server during installation.

Exploit prediction

1.11% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

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 coffe-script
1 listed version
no fix listed

Affected products

  • HackerOne coffeescript node module

Classification

Weakness
  • CWE-506 Embedded Malicious Code
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.