PHP session_regenerate_id: Stop Session Fixation Right
Calling session_regenerate_id() at login is the start of PHP session security, not the whole of it. This guide shows the fixation attack strict mode …
Tag
AppSec
Webhook Security: Signatures, Replay Protection, Idempotency
A webhook receiver is a public URL that triggers real actions. Securing it takes three separate controls: HMAC signature verification against the raw …
IDOR Vulnerabilities: How to Find and Fix Insecure Direct Object References
IDOR is one of the simplest vulnerability classes to understand and one of the easiest to miss in testing, because it doesn't fail — it just returns …
Broken Access Control: Real-World Examples and How to Prevent It
Broken access control has topped the OWASP Top 10 since 2021 for a reason: it's not one vulnerability type, it's an entire category of ways …
How API Rate Limiting Actually Works—and Where It Fails
Rate limiting is treated as a solved problem once it's implemented. In practice, the algorithm and the scope you choose determine whether it actually …
The Most Common API Security Misconfigurations and How to Fix Them
API misconfigurations don't usually come from a missing feature. They come from a default that was never revisited once the API left the prototype …
Cosign Container Image Signing: Keyless Signing in CI and Why Verification Must Pin an Identity
Signing a container image with Sigstore's cosign takes one command; the security comes from what the verifier insists on. Here is how keyless signing …
How to Secure a Public REST API: A Production Checklist
Most public API breaches don't come from a novel attack technique. They come from a well-known control that was never actually implemented before …
SLSA Build Levels and Provenance Attestations: What They Prove and What They Don't
SLSA Build Level 1, 2 and 3 describe how trustworthy a build's provenance is, not whether the code is safe. Here is what each level promises, how …
SBOM Minimum Elements 2026: 17 Fields and What Changed
On July 29, 2026, CISA and international partners published updated minimum elements for a software bill of materials, replacing the 2021 NTIA …
HTTP Security Headers Beyond CSP: HSTS, nosniff, Referrer-Policy and Permissions-Policy Explained
Four response headers do most of the work after Content Security Policy: Strict-Transport-Security, X-Content-Type-Options, Referrer-Policy and …
Content Security Policy: A Strict Nonce-Based Policy and How to Roll It Out Safely
A Content Security Policy limits what scripts a browser will run, which can turn a cross-site scripting bug from a full compromise into a blocked …