Header Change Notifier
Summary: PortSwigger's BApp Store lists a third-party extension called Header Change Notifier, version 2.1.0, by author MohamedXploit, last updated 30 March 2026. It uses passive scanning to track security-critical HTTP response headers across browsing sessions to the same URL and raises scanner issues when those headers change.
Key Takeaway: The extension targets security misconfigurations, inconsistent server behaviour, and weakened security policies during testing - the kind of header drift that can quietly strip protections from a URL you already assessed. PortSwigger states it makes no warranty about third-party extensions' quality or usefulness.
Read the original at PortSwigger Research ↗
- Topics
- OT / ICS & Critical Infrastructure
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