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Intigriti July XSS Challenge (0725)
My author's writeup of the July 2025 challenge. Perform Mutation XSS to DOM Clobber an change the insertion point into an iframe, then bypass the CSP using a new useful Socket.IO gadget
Nonce CSP bypass using Disk Cache
The solution to my small XSS challenge, explaining a new kind of CSP bypass with browser-cached nonces. Leak it with CSS and learn about Disk Cache to safely update your payload
OBS WebSocket to RCE
Disabling password authentication of your OBS WebSocket server can have devastating consequences. We'll attack from the browser to construct an RCE payload on Windows formed from the pixels of an image, a polyglot.
MCP: May Cause Pwnage - Backdoors in Disguise
Together with @AtomicByte, we found some vulnerabilities in the MCP protocol, debugging tools, and scanned for internet-exposed servers. This resulted in a ton of results ranging from headless browsers, databases or code evaluators.