Better API Endpoint Enumeration: Testing for the #1 OWASP Security Vuln
Broken Access Controls is at the top of the OWASP Top 10. The difficulty is finding each instance to test. Learn 3 ways to enumerate API endpoints thoroughly.
Ryan Chaplin
Ryan, OSCP, has performed penetration testing services for clients across a variety of industries from hospitals to non-profits to S&P 500 companies. He has been awarded for his work from numerous companies including NASA JPL. Prior to working in Offensive Security his work focused on the intersection of Software Development, Digital Marketing, and Security. He also enjoys playing basketball, reading, the arts, and watching way too much Netflix.
The Exploit Articles Written by Ryan Chaplin
RoguePlanet: The Defender Zero-day that Survived Microsoft’s June Patch
The new critical Microsoft Defender exploit, RoguePlanet (CVE-2026-50656), is confirmed active in the wild. Learn what it is and how to protect your network.
Defense in Depth Against Linux Kernel Privilege Escalation: A Practical Guide for Container Workloads
With current local privilege escalation exploits like Copy Fail and Dirty Frag active in the wild, harden your defenses to halt attacks even before patching.
Bypassing ChatGPT’s Open-Source Model Security Restrictions for Agentic Hacking
Ryan Chaplin wondered what it would take to bypass ChatGPT’s open-source model security restrictions to allow AI to hack his website. See how he did it here.
Two Critical Telnet Flaws in 2026 Allow Unauthenticated Root Access
Lead Penetration Ryan Chaplin explains how to protect your network against CVE-2026-24061 and CVE-2026-32746, two critical Telnet flaws released this year.
BeyondTrust RCE Vulnerability Exploited: Critical 9.9 CVSS Flaw Under Active Attack
While BeyondTrust patched cloud-hosted Remote Support customers earlier this month, on-premises deployments of BeyondTrust must manually patch to remediate.
Bypassing a WAF and a CSP with Google Tag Manager: An Attacker’s Perspective and Remediation Advice
Ryan Chaplin takes an in-depth look at how attackers can use unsafe directives to bypass CSP, notably in Google Tag Manager, and how to remediate the issue.
Autonomous Supply-Chain Worm Compromises Postman, PostHog, Zapier, and 26k Others
Operating fully autonomously, this new supply-chain malware has compromised Postman, PostHog, Zapier and 26k others. Learn what your organization should do now.
AI-Augmented Series: LLM-Aided Enumeration for Dormant WordPress Account Discovery
Ryan Chaplin leads off our Augmented-AI series with a scenario from a recent pentest using AI to write a script to discover an account to gain system access.
Windows Kills Common Offline/Account-less Install Method
Microsoft Windows recently announced the removal of local-only installs on Windows 11. Raxis’ Ryan Chaplin looks at concerns and possible options.
Dangers of Storing Sensitive Data in Web Storage: 5 Real Attack Scenarios
Lead Penetration Tester Ryan Chaplin walks us through 5 real-world attack scenarios used in real-world penetration tests by Raxis.
Password Series: 8 Practical First Steps to Crack Difficult Passwords in Penetration Tests
From rulesets & hardware to wordlists and mask attacks, Lead Penetration Tester Ryan Chaplin shows how to crack difficult password hashes in penetration tests.
14 posts by Ryan Chaplin.