Stored XSS to Account Takeover (ATO) via GraphQL API Late last year on HackerOne during an LHE (this is only important later due to an extreme time crunch), I found an extremely challenging vulnerability on a major brand's web site involving several layers of exploitation ultimately resulting in a stored XSS payload …

Summary This writeup talks about a successful collab that I did with Dark9T (@UsmanMansha) on a private program hosted on Bugcrowd. We ended up able to bypass Akamai WAF and achieve Remote Code Execution (P1) using Spring Expression Language injection on an application running Spring Boot. This was the 2nd RCE via SSTI …