PentesterLab 

282 Followers
0 Following
10 Posts
We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!
Websitehttps://pentesterlab.com/
Thanks @snyff for the flight ready bag merch at #chcon2025 @PentesterLab
A surprise from @PentesterLab
Super excited to announce that we have some fabulous new sponsors-in-kind! RIT CGI (@RITtigers), MetaCTF (@MetaCTF), Hac5 (@hak5), PentesterLab (@PentesterLab), and TCM Security (@TCMSecurity ) !! We couldn't run this conference without your generous assistance. THANK YOU!

One of the most common mistake in security audits, pentests or compliance:

Thinking checklists are the ultimate goals or the most detailed checks we need.

In reality, checklists are just the starting point, the bare minimum we should be doing.

With training budgets shrinking, ensure your team stays ahead of the curve with affordable, top-tier training from PentesterLab 📈💡

https://pentesterlab.com/pro/enterprise

PentesterLab: PentesterLab Pro: Enterprise

Shout out to @PentesterLab for sending me my new favorite keychain!

#RemoveBeforeShell

Articles worth reading discovered last week:

# CVE-2021-43444 to 43449: Exploiting ONLYOFFICE Web Sockets for Unauthenticated Remote Code Execution
🗞 https://labs.nettitude.com/blog/exploiting-onlyoffice-web-sockets-for-unauthenticated-remote-code-execution/

# Technical challenges with file formats - Speaker Deck
🗞 https://speakerdeck.com/ange/technical-challenges-with-file-formats

# I Hope This Sticks: Analyzing ClipboardEvent Listeners for Stored XSS | Spaceraccoon's Blog
🗞 https://spaceraccoon.dev/analyzing-clipboardevent-listeners-stored-xss/

# GitHub - fransr/hot-jar-swapping-urlclassloader: Demo of the URLClassLoader JAR-swapping showing the ability to replace and exploit an already loaded JAR with inner classes
🗞 https://github.com/fransr/hot-jar-swapping-urlclassloader

#PentesterLabWeekly

Remote Code Execution in ONLYOFFICE - Nettitude Labs

Nettitude discovered multiple vulnerabilities in ONLYOFFICE Web Sockets that can be exploited for Unauthenticated Remote Code Execution.

Nettitude Labs

@PentesterLab Bootcamp is an awesome resource to prepare for my eWPT exam. 🙏

Web for pentester ✅
Web for pentester II ✅