session-security
Safeguard articles tagged "session-security" — guides, analysis, and best practices for software supply chain and application security.
14 articles
Cross-site request forgery (CSRF) explained
CSRF forges authenticated requests using a victim's own session cookies. Learn how real attacks against Netflix and uTorrent worked, and how to stop them.
A hardening guide to securing Flask applications
Flask ships session cookies with HttpOnly on by default — but Secure, SameSite, CSRF tokens, and every security header are left entirely to you.
What is CSRF (Cross-Site Request Forgery)?
CSRF makes a logged-in user's browser perform actions they never intended — changing an email, moving money, granting access — using the victim's own session. Here's how it works and how to stop it.
Cookie Security Best Practices (2026)
Session cookies are the keys to your users' accounts. Here is how to set them so they cannot be stolen, forged, or leaked: the flags, the prefixes, and the parsing pitfalls.
Web Session Management: A Security Guide for Developers
Web session management is how an application remembers who a user is across stateless HTTP requests. Get the session identifier, storage, and lifecycle wrong and you hand attackers the keys.
CVE-2023-30861: Flask session cookie disclosure to templates
CVE-2023-30861 lets caching proxies leak Flask session cookies between users when responses aren't marked Vary: Cookie. Here's who's affected and how to fix it.
PHP Security Issues: The Vulnerabilities That Still Bite in 2025
Most PHP security issues come down to a handful of repeatable mistakes: unsanitized input, weak session handling, and outdated dependencies. Here is what breaks and how to fix it.
cookie-parser in Express: Security Guide and Best Practices
The cookie-parser npm middleware is deceptively simple, but signed-cookie misuse and a 2024 CVE in its underlying cookie library still catch Express teams out.
Passport (npm): A Security Review and Safe-Usage Guide
A security-focused look at the passport npm package: what it does, the session fixation CVE fixed in 0.6.0, and how to configure authentication safely.
flask-security-too: What It Is and How to Use It Securely
flask-security-too is the maintained successor to Flask-Security, giving Flask apps authentication, roles, and account features out of the box. Here is what it provides and how to configure it safely.
User Session Management: A Security Guide
Session management is where most authentication bugs actually live. This guide covers how to issue, store, rotate, and revoke sessions without opening holes attackers walk straight through.
CSRF Attacks: How They Work and How Tokens Stop Them
A CSRF attack rides a logged-in user's browser to forge requests they never meant to send. Here is the mechanism and why anti-CSRF tokens defeat it.
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