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Application Security

Finding and fixing IDOR vulnerabilities in Python

Broken Object Level Authorization has held the #1 spot on the OWASP API Security Top 10 since 2019 — and Django's get_object_or_404() does nothing to stop it.

Jul 8, 20266 min read
Application Security

Designing Secure Fastify Plugin Boundaries

Fastify's encapsulation model isolates plugin state by default — but one `fastify-plugin` wrapper or a stray `skip-override` symbol can silently punch a hole through every boundary you had.

Jul 8, 20267 min read
Application Security

DOM clobbering: the XSS attack that never runs a script tag

DOM clobbering lets attackers hijack JavaScript logic using pure HTML — no <script> tag required — and it just bypassed DOMPurify's own sanitizer in 2026.

Jul 8, 20266 min read
Application Security

Dependency injection in Python: a guide to testability and security boundaries

FastAPI shipped a built-in DI container in its very first release in December 2018 — but the same swappability that makes DI testable can quietly ship a mock into production.

Jul 8, 20267 min read
Application Security

CTF writeup patterns: serialization and cryptographic puzzles, decoded

CVE-2013-0156 let attackers RCE Rails by feeding YAML into a parameter parser — the same insecure-deserialization pattern CTF players train on every weekend.

Jul 8, 20267 min read
Application Security

Command injection in Python: subprocess, os.system, and safe-by-default patterns

os.system() and subprocess.run(shell=True) both hand a string straight to /bin/sh — one unescaped semicolon is enough to run arbitrary commands.

Jul 8, 20266 min read
Application Security

Python code injection: eval, exec, and pickle explained

eval(), exec(), and pickle.load() can each hand an attacker a Python interpreter — CVE-2020-1747 shows how one unsafe deserialization call became a real RCE.

Jul 8, 20265 min read
Application Security

C/C++ security in automotive software-defined vehicles

MISRA C:2025 now spans roughly 225 guidelines and explicitly covers AI-generated code — but memory-safety bugs still drive roughly 70% of the vulnerabilities patched in major C/C++ codebases.

Jul 8, 20267 min read
Application Security

Memory-Safety Vulnerabilities in C/C++: What Static and Dynamic Analysis Actually Catch

Roughly 70% of the CVEs Microsoft and Google's Chrome team assign each year trace to memory-unsafe C/C++ code — how static analysis, sanitizers, and fuzzers each catch a different slice of it.

Jul 8, 20267 min read

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