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Fencer Intel
medium 5.3

CVE-2021-21026 json

Magento Commerce Incorrect permissions Could Lead To Unauthorized Access

published 5y ago modified 2mo ago also BIT-magento-2021-21026 , EUVD-2022-3627 , GHSA-crjc-2v9m-8w7r

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are affected by an improper authorization vulnerability in the integrations module. Successful exploitation could lead to unauthorized access to restricted resources by an unauthenticated attacker. Access to the admin console is required for successful exploitation.

Patch / fix

  • packagist magento/community-edition 2.3.6-p1, 2.4.2
  • bitnami magento 2.3.6, 2.4.1
  • magento magento 2.3.6

Is CVE-2021-21026 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.72% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N
OSV 3.0 5.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist magento/community-edition
<2.3.6-p1
>=2.4.0, <2.4.2
2.3.6-p1
2.4.2
packagist magento/project-community-edition
<=2.0.2
 no fix listed
bitnami magento
<2.3.6
>=2.4.0, <2.4.1
2.3.6
2.4.1

Affected products

  • Adobe Magento Commerce

Classification

Weakness

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.