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Burp Suite Documentation

Take a look at our Documentation section for full details about every Burp Suite tool, function and configuration option.

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Extensibility

Burp Extender

Burp Extender lets you extend the functionality of Burp Suite in numerous ways.

Extensions can be written in Java, Python or Ruby.

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Support CenterIssue DefinitionsCross-domain script include

Cross-domain script include

Description

When an application includes a script from an external domain, this script is executed by the browser within the security context of the invoking application. The script can therefore do anything that the application's own scripts can do, such as accessing application data and performing actions within the context of the current user.

If you include a script from an external domain, then you are trusting that domain with the data and functionality of your application, and you are trusting the domain's own security to prevent an attacker from modifying the script to perform malicious actions within your application.

Remediation

Scripts should not be included from untrusted domains. Applications that rely on third-party scripts should consider copying the contents of these scripts onto their own domain and including them from there. If that is not possible (e.g. for licensing reasons) then consider reimplementing the script's functionality within application code.

Vulnerability classifications

Typical severity

Information

Type index

0x00500500