The Adobe PDF XSS Vulnerability. If you host a PDF file anywhere on your site, you’re vulnerable to an XSS attack due to a bug in Acrobat Reader versions below 8. The fix is to serve PDFs as application/octet-stream to avoid them being displayed inline.
Recent articles
- Introducing gisthost.github.io - 1st January 2026
- 2025: The year in LLMs - 31st December 2025
- How Rob Pike got spammed with an AI slop "act of kindness" - 26th December 2025