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Fencer Intel
medium 4.3

CVE-2021-4247 json

OWASP NodeGoat Query Parameter research.js denial of service

published 3y ago modified 4mo ago also EUVD-2021-34095

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

A vulnerability has been found in OWASP NodeGoat and classified as problematic. This vulnerability affects unknown code of the file app/routes/research.js of the component Query Parameter Handler. The manipulation leads to denial of service. The attack can be initiated remotely. The name of the patch is 4a4d1db74c63fb4ff8d366551c3af006c25ead12. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-216184.

Patch / fix

  • owasp nodegoat 2021-01-26

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/OWASP/NodeGoat/issues/225 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • OWASP NodeGoat

Classification

Weakness
  • CWE-404 Improper Resource Shutdown or Release

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.