CVE-2024-21520

Summary

CVE-2024-21520 is a newly disclosed Cross-site Scripting (XSS) vulnerability that affects versions of the Django REST framework prior to 3.15.2. The issue arises due to insufficient input sanitization in the break_long_headers template filter, which allows an attacker to inject malicious code into web applications. The filter, which is used to split and join headers with <br> tags, fails to properly sanitize user-supplied input, making it susceptible to XSS attacks. These attacks can result in the unauthorized execution of malicious scripts in users' web browsers. To mitigate this risk, it is recommended that users upgrade to the latest version of the Django REST framework.

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