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Vulnerability DatabaseGHSA-h6p3-p4vx-wr8q
GHSA-h6p3-p4vx-wr8q:
Python vulnerability analysis and mitigation
Overview
DOMPurify versions prior to 2.2.3 were vulnerable to Cross-site Scripting (XSS) due to issues with nested headlines. The vulnerability was published on January 11, 2023, and affected all versions below 2.2.3 (GitHub Advisory).
Technical details
The vulnerability stems from an mXSS (Mutation-based XSS) issue reported by PewGrand. The issue was discovered on June 8, 2022, and received a CVSS score of 6.5 (medium severity). The vulnerability is tracked as CWE-79 and primarily affects the DOM-based sanitization functionality of the library (Snyk Advisory).
Impact
When exploited, this vulnerability could lead to Cross-site Scripting attacks, potentially allowing attackers to steal cookies, hijack user sessions, expose sensitive information, enable access to privileged services and functionality, and deliver malware (Snyk Advisory).
Mitigation and workarounds
The vulnerability was patched in DOMPurify version 2.2.3. The recommended mitigation is to upgrade to version 2.2.3 or higher (GitHub Release).
Additional resources
Source: This report was generated using AI
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