An XSS on Facebook via PNGs & Wonky Content TypesContent uploaded to Facebook is stored on their CDN, which is served via various domains (most of which are sub-domains of either akamaihd.net or fbcdn.net). The captioning feature of Videos also stores the .srt files on the CDN, and I noticed that right-angle brackets were un-encoded. https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-xaf1/….srt I was trying to think of ways to get the file interpret
