Clickjacking · passage 10 of 12

IE8 XSS filter

2 code blocks · Clickjacking/README.md

For testing systems you own or are authorised to test, and for defending them. Nothing here is run by this page.

This filter has visibility into all parameters of each request and response flowing through the web browser and it compares them to a set of regular expressions in order to look for reflected XSS attempts. When the filter identifies a possible XSS attacks; it disables all inline scripts within the page, including frame busting scripts (the same thing could be done with external scripts). For this reason an attacker could induce a false positive by inserting the beginning of the frame busting script into a request's parameters.

<script>
    if ( top != self )
    {
        top.location=self.location;
    }
</script>

Attacker View:

<iframe src=”http://target site/?param=<script>if”>

Every one of the 12 is a mark on the map. Named now: 1 to 12, reading order first.

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-14 · CISA KEV checked 2026-11-15. Source: PayloadsAllTheThings by Swissky and contributors, MIT License. For authorised testing only.