7.2

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2019-7912

CVE-2019-7912: Magento Filter extension bypass via crafted store configuration keys

A file upload filter bypass exists in Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. This can be exploited by an authenticated user with admin privileges to edit configuration keys to remove file extension filters, potentially resulting in the malicious upload and execution of malicious files on the server.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2019-7912

CVE-2019-7912:

7.2

CVSS Score

3.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
magento/community-edition	composer	>= 2.1, < 2.1.18	2.1.18
magento/community-edition	composer	>= 2.2, < 2.2.9	2.2.9
magento/community-edition	composer	>= 2.3, < 2.3.2	2.3.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper validation of user-controlled configuration values that govern file upload restrictions. Key functions identified are those responsible for 1) retrieving allowed extensions from config (ImageUploader::getAllowedExtensions), and 2) enforcing these restrictions during upload (Uploader::_setUploadFile). These functions become vulnerable when configuration values are manipulated to empty, as they lack fallback mechanisms to enforce minimum security constraints. The assessment aligns with Magento's architecture where configuration-driven upload filters are common, and matches the CWE-434 pattern of unrestricted uploads via missing validation.

Vulnerable functions

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Vulnerability Intelligence
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WAF Protection Rules

WAF Rule

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Reasoning

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