5.4

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-43720

CVE-2022-43720: Apache Superset vulnerable to Injection

An authenticated attacker with write CSS template permissions can create a record with specific HTML tags that will not get properly escaped by the toast message displayed when a user deletes that specific CSS template record. This issue affects Apache Superset version 1.5.2 and prior versions and version 2.0.0.

(GitHub Advisory)

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CVE-2022-43720

CVE-2022-43720:

5.4

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
apache-superset	pip	<= 1.5.2
apache-superset	pip	= 2.0.0

Technical Details

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Root Cause Analysis

The vulnerability occurs when a malicious CSS template is deleted, and its attributes are used in a toast message without proper HTML escaping. The core issue lies in the deletion handler that generates the feedback message. In Flask-based applications like Superset, view functions (e.g., in core.py) typically handle CRUD operations and flash messages. The function responsible for CSS template deletion would retrieve the template's user-controlled data (like name/ID), format it into a success message, and pass it to the frontend without adequate sanitization. Since the advisory specifies the attack vector requires write permissions on CSS templates and affects toast messages, the delete handler in the CSS template management view is the most likely candidate.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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