Episode 168: XSSDoctor - Client-side Path Traversal Research
Critical Thinking - Bug Bounty Podcast2 Huhti

Episode 168: XSSDoctor - Client-side Path Traversal Research

Episode 168: In this episode of Critical Thinking - Bug Bounty Podcast we’re getting a visit from the XSS Doctor. Jonathan joins us to go through his Client-side workflow, run labs, and diagnose some bugs live.


Follow us on twitter at: https://x.com/ctbbpodcast

Got any ideas and suggestions? Feel free to send us any feedback here: info@criticalthinkingpodcast.io

Shoutout to YTCracker for the awesome intro music!


====== Links ======

Follow your hosts Rhynorater, rez0 and gr3pme on X:

https://x.com/Rhynorater

https://x.com/rez0__

https://x.com/gr3pme


Critical Research Lab:

https://lab.ctbb.show/


====== Ways to Support CTBBPodcast ======

Hop on the CTBB Discord at https://ctbb.show/discord!


We also do Discord subs at $25, $10, and $5 - premium subscribers get access to private masterclasses, exploits, tools, scripts, un-redacted bug reports, etc.


You can also find some hacker swag at https://ctbb.show/merch!


Today’s Guest: https://x.com/xssdoctor


====== Resources ======


The Dot-Dot-Slash That Frameworks Hand You: CSPT Across Every Major Frontend Framework

https://lab.ctbb.show/research/the-dot-dot-slash-that-frameworks-hand-you


URL validation bypass cheat sheet

https://portswigger.net/web-security/ssrf/url-validation-bypass-cheat-sheet


====== Timestamps ======

(00:00:00) Introduction

(00:01:37) Home Automation AI Hack & E-signature bug stories

(00:12:15) E-signature bug

(00:17:01) XSS DR Intro and Bug Bounty Journey

(00:31:51) CSPT Workflows

(01:07:57) Wildcard Path Parameters

(01:30:34) Custom Sinks

Jaksot(168)

Episode 112: Interview with Ciarán Cotter (MonkeHack) - Critical Lab Researcher and Full-time Hunter

Episode 112: Interview with Ciarán Cotter (MonkeHack) - Critical Lab Researcher and Full-time Hunter

Episode 112: In this episode of Critical Thinking - Bug Bounty Podcast Joseph Thacker is joined by Ciarán Cotter (Monke) to share his bug hunting journey and give us the rundown on some recent client-...

27 Helmi 20251h 7min

Episode 111: How to Bypass DOMPurify in Bug Bounty with Kevin Mizu

Episode 111: How to Bypass DOMPurify in Bug Bounty with Kevin Mizu

Episode 111: In this episode of Critical Thinking - Bug Bounty Podcast Justin interviews Kevin Mizu to showcase his knowledge regarding DOMPurify and its misconfigurations. We walk through some of Kev...

20 Helmi 20251h 49min

Episode 110: Oauth Gadget Correlation and Common Attacks

Episode 110: Oauth Gadget Correlation and Common Attacks

Episode 110: In this episode of Critical Thinking - Bug Bounty Podcast we hit some quick news items including a DOMPurify 3.2.3 Bypass, O3 mini updates, and a cool postLogger Chrome Extension. Then, w...

13 Helmi 202549min

Episode 109: Creative Recon - Alternative Techniques

Episode 109: Creative Recon - Alternative Techniques

Episode 109: In this episode of Critical Thinking - Bug Bounty Podcast we start off with a quick recap of some of the DeepSeek Drama that’s been going down, and discuss AI in CAPTCHA and 2FA as well. ...

6 Helmi 20251h 1min

Episode 108: How to Hack Salesforce, ServiceNow, and Other SaaS Products With Aaron Costello

Episode 108: How to Hack Salesforce, ServiceNow, and Other SaaS Products With Aaron Costello

Episode 108: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph bring on Aaron Costello to discuss SaaS security and misconfigurations as a bug class. He also gives some in-de...

30 Tammi 20251h 31min

Episode 107: Bypassing Cross-Origin Browser Headers

Episode 107: Bypassing Cross-Origin Browser Headers

Episode 107: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph are tackling the subject of cross-origin security headers. They also cover some news items including Google’s O...

23 Tammi 20251h 6min

Episode 106: Announcing our new cohost...

Episode 106: Announcing our new cohost...

Episode 106: In this episode of Critical Thinking - Bug Bounty Podcast we are pleased to announce our new co-host of the podcast: Joseph Thacker Aka Rez0! We discuss Joseph's transition to full-time b...

16 Tammi 202558min

Episode 105: Best Critical Thinking Moments from 2024

Episode 105: Best Critical Thinking Moments from 2024

Episode 105: In this episode of Critical Thinking - Bug Bounty Podcast we're back with another Best-of episode recapping some of our top moments of 2024.Follow us on twitter at: @ctbbpodcastSsend us a...

9 Tammi 20252h 17min