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Fencer Vulns
high 7.5

CVE-2021-23450 in the critical feed json

Prototype Pollution

published 2021-12-17 4 y ago modified 2026-10-08 31 d ago also GHSA-m8gw-hjpr-rjv7 , EUVD-2022-0644

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
30.4%
EPSS 30.4% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

All versions of package dojo are vulnerable to Prototype Pollution via the setObject function.

Patch / fix

  • linuxfoundation dojo 1.17.0
  • dojo Debian 14, Debian 13, Debian 12 1.17.2+dfsg1-1

debian advisories DEBIAN-CVE-2021-23450

  • dojo Ubuntu 22.04 LTS 1.15.4+dfsg1-1ubuntu0.1
  • dojo Ubuntu Pro 16.04 LTS 1.10.4+dfsg-2ubuntu0.1~esm1
  • dojo Ubuntu Pro 20.04 LTS 1.15.0+dfsg1-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2021-23450

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-23450 updated cvss 7.5

dojo: prototype pollution via the setObject function

  • Red Hat Enterprise Linux 7 ipa, ipa-client, ipa-common, ipa-python, ipa-server, ipa-admintools, +8 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
31 d ago

Exploit prediction

30.37% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • snyk.io https://snyk.io/vuln/SNYK-JS-DOJO-1535223 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2313033 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBDOJO-2313034 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2313035 referenced PoC, tagged "exploit" by a source, unverified
  • snyk.io https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-2313036 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm dojo
<=1.16.4
 no fix listed

Affected products

  • n/a dojo

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.