Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-427g-2r83-3ccm
Advisory ID github_osv/GHSA-427g-2r83-3ccm
Aliases CVE-2019-8126
Summary Information disclosure through processing of external XML entities 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](https://web.archive.org/web/20201126132230/https://devdocs.magento.com/guides/v2.3/release-notes/release-notes-2-3-3-commerce.html#new-security-only-patch-available), 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.
Status Published
Exploitability 0.5
Weighted Severity 4.4
Risk 2.2
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-611 Improper Restriction of XML External Entity Reference
CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
System Score Found at
cvssv3.1 4.9 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/11/GHSA-427g-2r83-3ccm/GHSA-427g-2r83-3ccm.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2019-8126.yaml
https://magento.com/security/patches/magento-2.3.3-and-2.2.10-security-update
CVE-2019-8126 https://nvd.nist.gov/vuln/detail/CVE-2019-8126
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/11/GHSA-427g-2r83-3ccm/GHSA-427g-2r83-3ccm.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.