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Magento vulnerable to a file upload restriction bypass

Critical severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 11, 2024

Package

composer magento/community-edition (Composer)

Affected versions

< 2.3.6-p1
>= 2.4.0, < 2.4.2

Patched versions

2.3.6-p1
2.4.2

Description

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to a file upload restriction bypass. Successful exploitation could lead to arbitrary code execution by an authenticated attacker. Access to the admin console is required for successful exploitation.

References

Published by the National Vulnerability Database Feb 11, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jan 11, 2024
Last updated Jan 11, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS score

0.120%
(48th percentile)

Weaknesses

CVE ID

CVE-2021-21014

GHSA ID

GHSA-269w-pqc7-68q9

Source code

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