Responsible Disclosure: SVG injection in Three.co.uk
Here's a quick write-up of a minor XSS (Cross Site Scripting) vulnerability on the website of Three.co.uk - one of the UK's mobile providers. A brief recap... Most websites have a search function. If you search for something which cannot be found, the site will often say "No results found for XYZ." If we can convince the search engine to spit out HTML, we can inject malicious content into the page. This is usually done by searching for something like <script>alert("h4X0r");</script>…
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