Charset Manipulation Vulnerability

Anandhu Krishnan

Published on

14 May 2024

Vulnerability

Description

This vulnerability occurs when the application does not properly set its response character set, allowing an attacker to manipulate the HTML and potentially inject malicious code. A compromised charset declaration can be used to bypass server-side XSS protections and embed scripts in the page.

Recommendation

Ensure that all charset declarations are set to UTF-8. If user-input is required to decide a charset declaration, only allow a specific list of values.

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