4.8

CVSS Score

3.0

-

CVSS Score

Basic Information

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CVE-2019-7853

CVE-2019-7853: Magento 2 Community Edition XSS Vulnerability

A stored cross-site scripting vulnerability 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 could be exploited by an authenticated user with privileges to the tax notifications configuration in the Magento admin panel.

(GitHub Advisory)

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CVE-2019-7853

CVE-2019-7853:

4.8

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	>= 2.1.0, < 2.1.18	2.1.18
magento/community-edition	composer	>= 2.2.0, < 2.2.9	2.2.9
magento/community-edition	composer	>= 2.3.0, < 2.3.2	2.3.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper input sanitization in the tax/notification/info_url configuration setting. The advisory explicitly references this configuration path, indicating the backend model handling this setting (InfoUrl class) is the source. Stored XSS requires both unsanitized storage and unsafe rendering. While output escaping might also be a factor, the CWE-79 classification and Magento's typical security patterns suggest the root cause was insufficient input validation/sanitization in the configuration persistence layer before storage. The beforeSave method in the backend model is the primary point where sanitization should occur for configuration values.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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