SRI Check

A Burp Suite extension for identifying missing Subresource Integrity attributes.

• Passive scanner checks create informational issues in Burp Suite
• Only flags resources from 3rd party domains that do not include the integrity attribute.
• Written in Python
• Requires Jython 2.7+
• Pull requests welcome!

Todo

• Add support for relative paths
• Improve regex, especially accounting for the case of script and link tags and spaces in tags
• Check MIME type of pages to prevent running against images, CSS, etc.
• Fix possible concurrency issues
• Account for possible false positives on tags

Screenshots