Tag
postmessage
Safeguard articles tagged "postmessage" — guides, analysis, and best practices for software supply chain and application security.
2 articles
Application Security
A methodology for testing SPAs for client-side vulnerabilities
DOM XSS, token storage, and API exposure don't show up in a server-side scan — here's a repeatable methodology for testing React, Vue, and Angular apps.
Jul 9, 20266 min read
Application Security
Browser extensions are the softest target in your stack
A patched Grammarly bug let any website steal a user's documents; a 2025 flaw in Anthropic's Claude extension enabled silent prompt injection. Extensions keep failing the same three ways.
Jul 8, 20267 min read