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Information disclosure through processing of external XML entities

Moderate severity GitHub Reviewed Published Nov 12, 2019 to the GitHub Advisory Database • Updated Feb 12, 2024

Package

composer magento/community-edition (Composer)

Affected versions

>= 2.2, < 2.2.10
>= 2.3, < 2.3.2-p2

Patched versions

2.2.10
2.3.2-p2

Description

An XML entity injection vulnerability exists in Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An authenticated admin user can craft document type definition for an XML representing XML layout. The crafted document type definition and XML layout allow processing of external entities which can lead to information disclosure.

As per the Magento Release 2.3.3, if you have already implemented the pre-release version of this patch (2.3.2-p1), it is highly recommended to promptly upgrade to 2.3.2-p2.

References

Published by the National Vulnerability Database Nov 5, 2019
Reviewed Nov 12, 2019
Published to the GitHub Advisory Database Nov 12, 2019
Last updated Feb 12, 2024

Severity

Moderate

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
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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:U/C:H/I:N/A:N

EPSS score

0.063%
(28th percentile)

Weaknesses

CVE ID

CVE-2019-8126

GHSA ID

GHSA-427g-2r83-3ccm

Source code

No known source code
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