jsonp

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0 7/10

A researcher chained two XSSi (Cross-Site Script Inclusion) vulnerabilities at Yahoo to steal user account information by extracting a valid crumb token from a dynamic JavaScript file and using it in a JSONP endpoint request, earning a $750 bounty.

Yahoo Burp Suite JSONP https://messenger.yahoo.com/embed/app.js https://jsapi.login.yahoo.com/w/device_users
medium.com · devanshbatham/Awesome-Bugbounty-Writeups · 22 hours ago · details
0 9/10

A researcher discovered a stored XSS vulnerability in Twitter that could be weaponized as a self-propagating worm by exploiting flawed HTML tag stripping in the Welcome Message deeplink feature, combined with a JSONP endpoint vulnerability on a whitelisted subdomain to bypass the CSP policy. The attack chained multiple input validation bypasses and DOM manipulation techniques to achieve arbitrary JavaScript execution.

Twitter Virtue Security CVE (not specified in article)
virtuesecurity.com · devanshbatham/Awesome-Bugbounty-Writeups · 22 hours ago · details