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New CSS Attacks Can Break Webmail Defenses to Steal Passwords and Tokens

New research shows content inside an email can escape its message boundary and interfere with the webmail interface. Across attack chains spanning Outlook, Gmail, Fastmail, Proton Mail, Yahoo Mail, and AOL Mail, the techniques can capture passwords, take over third-party accounts, leak tokens, hijack trusted UI actions, and manipulate AI tools that read email. PortSwigger researcher Gareth

New CSS Attacks Can Break Webmail Defenses to Steal Passwords and Tokens

We haven't written up this one. The Hacker News has the full story — the link below goes straight to it.

Read the original at thehackernews.com →

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Processes and Threads in Operating Systems

Process In an Operating System, Any program that is currently in execution is called a Process. Every process has some unique attributes that allows the OS to control it. These attributes are stored inside a structure called the Process Control Block (PCB).

innerHTML Has Five Doors. Most Reviews Only Watch One.

I have reviewed the same line of code, written five different ways, and caught it once. The line is element.innerHTML = something . I catch it when something is obviously a URL parameter. I miss it when something arrived four frames ago through a message event, got stored, and is written to the DOM by a function in a different file.

  • innerHTML can insert content into DOM
  • Risks XSS vulnerabilities with untrusted data
  • Developers often neglect validation and sanitization

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