Critical Thinking - Bug Bounty Podcast

Episode 172: In this episode of Critical Thinking - Bug Bounty Podcast trying out a new structure of episode: a Meta Analysis of sorts of many Source Code Review techniques. This episode features tips gathered from Shubs, Rafax, and FSI. Justin highlights best approaches, patterns, and common pitfalls.

Follow us on twitter at: https://x.com/ctbbpodcast
Got any ideas and suggestions? Feel free to send us any feedback here: [email protected]
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 Sponsor: Adobe - Get 10% bonus for valid AI vulnerabilities in Adobe Stock and Lightroom Web. Use code: CTBB063026 in your report.
Expires June 30, 2026.

====== This Week in Bug Bounty ======

Open-source security testing: the Bug Bounty guide to code analysis
https://www.yeswehack.com/learn-bug-bounty/open-source-guide-code-analysis?utm_source=youtube&utm_medium=sponsor-critical-thinking&utm_campaign=open-source-guide-code-analysis

====== Resources ======
Abusing Windows, .NET quirks, and Unicode Normalization to exploit DNN (DotNetNuke)
https://slcyber.io/research-center/abusing-windows-net-quirks-and-unicode-normalization-to-exploit-dnn-dotnetnuke/#:~:text=across%20different%20languages.-,A%20MUST%2DKNOW%20BEHAVIOUR%20OF%20PATH.COMBINE,-Another%20key%20implementation

====== Timestamps ======
(00:00:00) Introduction
(00:06:49) Tracing Data Flow, knowing where your playload is landing, and developer mistakes.
(00:17:33) Mapping the software
(00:24:46) Sniffing for blood
(00:31:54) Common Patterns and Pitfalls

Episode 171: In this episode of Critical Thinking - Bug Bounty Podcast Justin gives us some quick tips from his own hacking, including some clickjacking, using capital letters, and the potential value of leaking ages

Follow us on twitter at: https://x.com/ctbbpodcast
Got any ideas and suggestions? Feel free to send us any feedback here: [email protected]
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 Sponsor: Check out ThreatLocker Ringfencing
https://www.criticalthinkingpodcast.io/tl-rf

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

The ultimate Bug Bounty guide to OS command injection vulnerabilities
https://www.yeswehack.com/learn-bug-bounty/ultimate-guide-os-command-injection?utm_source=critical-thinking-podcast&utm_medium=youtube&utm_campaign=article-os-command-injection

Critical auth bypass in WordPress Azure AD SSO plugin due to missing OIDC id_token validation
https://www.yeswehack.com/news/auth-bypass-wordpress-azure-plugin?utm_source=critical-thinking-podcast&utm_medium=youtube&utm_campaign=article-wordpress-bypass-plugin

Aituglo featured on YWH
https://www.yeswehack.com/community/developer-aituglo-bug-bounty-story

Adobe will be sponsoring Ekoparty in Miami and hosting a live hacking event on May 21st
https://ekoparty.org/ekoparty-miami-2026-super-live-hacking-event/

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

SVG clickjacking
https://lyra.horse/blog/2025/12/svg-clickjacking/

====== Timestamps ======
(00:00:00) Introduction
(00:06:35) Protobuff XSS
(00:12:51) Leaking Age & CSPTs
(00:15:59) Capital Letters and Clickjacking

Episode 170: In this episode of Critical Thinking - Bug Bounty Podcast Justin and Joseph their trip to Korea with some quick takeaways from the LHE.

Follow us on twitter at: https://x.com/ctbbpodcast
Got any ideas and suggestions? Feel free to send us any feedback here: [email protected]
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!

====== Timestamps ======
(00:00:00) Introduction
(00:01:41) Google LHE Debrief
(00:09:27) Old AI Exfils & AI report writing
(00:18:14) Human Tokens
(00:26:13) Protoscope & Caido Websocket Repeater

Episode 169: In this episode of Critical Thinking - Bug Bounty Podcast gr3pme goes over some of the changes from OAuth 2.0 vs 2.1 and how Hackers can capitalize.

Follow us on twitter at: https://x.com/ctbbpodcast
Got any ideas and suggestions? Feel free to send us any feedback here: [email protected]
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 Sponsor: Check out ThreatLocker Ringfencing
https://www.criticalthinkingpodcast.io/tl-rf

====== This Week in Bug Bounty ======

Intigriti is providing free Burp Pro for Hackers!
https://www.intigriti.com/blog/news/intigriti-collaborates-with-portswigger-to-support-ethical-hacking-excellence

====== Resources ======
Django-allauth Account Takeover (ZeroPath Audit)
https://zeropath.com/blog/django-allauth-account-takeover-vulnerabilities

CVE-2025-4144: Cloudflare Workers PKCE Bypass
https://github.com/cloudflare/workers-oauth-provider/security/advisories/GHSA-qgp8-v765-qxx9

CVE-2025-54576: OAuth2-Proxy Auth Bypass
https://zeropath.com/blog/cve-2025-54576-oauth2-proxy-auth-bypass

====== Timestamps ======
(00:00:00) Introduction
(00:02:16) OAuth 2.0 Standards
(00:12:08) Agent to Agent Communication
(00:17:19) CVE Case studies

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: [email protected]
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