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Fencer Vulns
critical 10.0

CVE-2023-3696 json

Prototype Pollution in automattic/mongoose

published 2023-07-17 3 y ago modified 2026-09-08 2 mo ago also BIT-mongoose-2023-3696 , EUVD-2023-2016 , GHSA-9m93-w8w6-76hh

cvss
10.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

Prototype Pollution in GitHub repository automattic/mongoose prior to 7.3.4.

Patch / fix

  • npm mongoose 5.13.20, 6.11.3, 7.3.3
  • bitnami mongoose 5.13.20, 6.11.3, 7.3.4
  • automattic automattic/mongoose 7.3.4
  • mongoosejs mongoose 7.3.4

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/1eef5a72-f6ab-4f61-b31d-fc66f5b4b467 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H
GitHub 3.0 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
npm mongoose
>=7.0.0, <7.3.3
>=6.0.0, <6.11.3
<5.13.20
7.3.3
6.11.3
5.13.20
bitnami mongoose
<5.13.20
>=6.0.0, <6.11.3
>=7.0.0, <7.3.4
5.13.20
6.11.3
7.3.4

Affected products

  • automattic automattic/mongoose
  • mongoosejs mongoose

Classification

Weakness
  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes

References

Sources

Fencer Vulns 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.