All Topics
All Topics
Technology
Technology
Design
Design
Programming
Programming
Science
Science
News
News
Gaming
Gaming
Entertainment
Entertainment
Business
Business
Finance
Finance
Sports
Sports
Health
Health
Food
Food
Travel
Travel
Art
Art
Music
Music
Books
Books
Education
Education
Politics
Politics
Personal
Personal
No algorithm. No AI slop. No ads. Just RSS. Pro-human. Indie writers. Real journalism. Open web. Chronological. Hand toasted.

Security Researchers Discover Critical XSS Vulnerabilities in Mintlify Platform Affecting Major Tech Companies

By

hackermondev

5mo ago· 7 min readenCode

Summary

A 16-year-old hacker and his friends discovered critical cross-site scripting vulnerabilities in Mintlify, an AI documentation platform used by major companies including X (Twitter), Vercel, Cursor, and Discord. The vulnerabilities allowed attackers to inject malicious scripts into company documentation pages, potentially stealing credentials and enabling supply-chain attacks affecting hundreds of companies. The article details their discovery process, the security implications, and how they responsibly disclosed the issues to Mintlify.

Key quotes

· 3 pulled
hi, i'm daniel. i'm a 16-year-old high school senior. in my free time, i hack billion dollar companies and build cool stuff.
i found a critical cross-site scripting vulnerability that, if abused, would let an attacker to inject malicious scripts into the documentation of numerous companies and steal credentials
about a month ago, a couple of friends and I found serious critical vulnerabilities on Mintlify, an AI documentation platform used by some of the top companies in the world
Snippet from the RSS feed
How we pwned X (Twitter), Vercel, Cursor, Discord, and hundreds of companies through a supply-chain attack - writeup.md

You might also wanna read

Microsoft uncovers supply chain attack: Compromised @antv npm packages steal CI/CD credentials via Mini Shai-Hulud malware

Microsoft has identified an active supply chain attack targeting the @antv npm package ecosystem. A threat actor compromised an @antv mainta

microsoft.com·1d ago

Zapier fixes five-bug vulnerability chain that could have enabled widespread account takeover

Security researchers at Token Security discovered a chain of five vulnerabilities in Zapier, a popular workflow automation service. The flaw

cyberscoop.com·2d ago

GitHub patches critical remote code execution vulnerability in under six hours after AI-assisted discovery

GitHub patched a critical remote code execution vulnerability in under six hours last month. The flaw, discovered by Wiz Research using AI m

The Verge·1mo ago

Microsoft uncovers npm supply chain attack stealing cloud and CI/CD credentials via typosquatted packages

Microsoft identified an active supply chain attack (Mini Shai-Hulud campaign) targeting the npm package ecosystem. On May 28, 2026, a threat

microsoft.com·3d ago

Microsoft's NLWeb Protocol Faces Early Security Flaw, Exposing Sensitive Data

Researchers discovered a critical vulnerability in Microsoft's NLWeb protocol, which was recently introduced as a revolutionary tool for int

The Verge·9mo ago

npm malware targeting Claude users leaks own GitHub token, reaches 676 downloads

An npm package called "mouse5212-super-formatter" targeting Claude users acted as information-stealing malware, reaching 676 downloads befor

theregister.com·2d ago