Ep. 10 – Cookie XSS & Image Upload RCE: One Cookie, One File, Full Control

One cookie set on a subdomain triggered XSS and stole session tokens. One fake image upload gave the attacker a reverse shell.

This episode breaks down two powerful exploits—a cookie-based XSS that bypassed frontend protections, and an RCE through Ghostscript triggered by a disguised PostScript file.

Learn how subtle misconfigurations turned everyday features into full account and server compromise.

Chapters:

00:00 - INTRO

01:08 - FINDING #1 - Cookie-Controlled XSS

12:19 - FINDING #2 - Image Upload to RCE via Ghostscript

19:03 - OUTRO

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