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Show HN: A luma dependent chroma compression algorithm (image compression)

https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-...
28•mbitsnbites•3d ago•2 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
52•momciloo•7h ago•10 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
294•isitcontent•1d ago•39 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
44•sandGorgon•2d ago•20 comments

Show HN: Django-rclone: Database and media backups for Django, powered by rclone

https://github.com/kjnez/django-rclone
2•cui•1h ago•1 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
362•eljojo•1d ago•218 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
374•vecti•1d ago•171 comments

Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals

https://github.com/writerslogic/witnessd
2•davidcondrey•2h ago•1 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
97•antves•2d ago•70 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
85•phreda4•1d ago•17 comments

Show HN: PalettePoint – AI color palette generator from text or images

https://palettepoint.com
2•latentio•4h ago•0 comments

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

https://github.com/artifact-keeper
156•bsgeraci•1d ago•65 comments

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

https://www.biotradingarena.com/hn
29•dchu17•1d ago•12 comments

Show HN: I built a <400ms latency voice agent that runs on a 4gb vram GTX 1650"

https://github.com/pheonix-delta/axiom-voice-agent
2•shubham-coder•6h ago•1 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
55•nwparker•2d ago•12 comments

Show HN: Stacky – certain block game clone

https://www.susmel.com/stacky/
3•Keyframe•7h ago•0 comments

Show HN: A toy compiler I built in high school (runs in browser)

https://vire-lang.web.app
3•xeouz•8h ago•1 comments

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
23•NathanFlurry•1d ago•11 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
18•denuoweb•2d ago•2 comments

Show HN: Env-shelf – Open-source desktop app to manage .env files

https://env-shelf.vercel.app/
2•ivanglpz•9h ago•0 comments

Show HN: Nginx-defender – realtime abuse blocking for Nginx

https://github.com/Anipaleja/nginx-defender
3•anipaleja•9h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
173•vkazanov•2d ago•49 comments

Show HN: MCP App to play backgammon with your LLM

https://github.com/sam-mfb/backgammon-mcp
3•sam256•11h ago•1 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
27•JoshPurtell•2d ago•5 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•1d ago•8 comments

Show HN: I'm 75, building an OSS Virtual Protest Protocol for digital activism

https://github.com/voice-of-japan/Virtual-Protest-Protocol/blob/main/README.md
9•sakanakana00•12h ago•2 comments

Show HN: I built Divvy to split restaurant bills from a photo

https://divvyai.app/
3•pieterdy•12h ago•1 comments

Show HN: Falcon's Eye (isometric NetHack) running in the browser via WebAssembly

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
7•rahuljaguste•1d ago•1 comments

Show HN: Local task classifier and dispatcher on RTX 3080

https://github.com/resilientworkflowsentinel/resilient-workflow-sentinel
25•Shubham_Amb•2d ago•2 comments

Show HN: Slop News – HN front page now, but it's all slop

https://dosaygo-studio.github.io/hn-front-page-2035/slop-news
22•keepamovin•17h ago•6 comments
Open in hackernews

Show HN: SiteIQ – LLM and Web security testing tool (built by a high schooler)

https://github.com/sastrophy/siteiq
4•sastrophy•2mo ago
Hi HN! I'm an 11th grade student learning cybersecurity and web development. I built SiteIQ as a hands-on way to understand security vulnerabilities, SEO, and how to test them.

I used AI as my coding partner throughout this project – it helped me understand concepts, debug issues, and write code. Building with AI felt like having a patient tutor available 24/7. I learned way more than I would have just following tutorials.

What it does: - Security Testing: OWASP Top 10 (SQL injection, XSS, CSRF, etc.) - SEO Analysis: Meta tags, schema markup, Core Web Vitals - GEO Testing: Multi-region accessibility and latency - LLM Security: Prompt injection, jailbreaking, system prompt leakage, and "Denial of Wallet" attacks

The LLM security part was the most interesting to build. With everyone adding AI to their apps, I wanted to understand how prompt injection actually works and how to test for it.

Features: - Web UI with real-time console output - CLI for automation - Self-hosted (no data leaves your machine)

Tech: Python, Flask, pytest

GitHub: https://github.com/sastrophy/siteiq

I'd love feedback – are there vulnerabilities I'm missing? Any suggestions for the LLM attack payloads?

This is my first open source project, so any advice is welcome!

Comments

denuoweb•2mo ago
Have you tried running this against itself? I found critical security vulnerabilities:

1. Command Injection Risk (CRITICAL) The web application passes user-controlled input directly to subprocess commands without proper sanitization. An attacker could inject malicious commands through the target_url, wordpress_path, llm_endpoint, or tests parameters. app.py:232-264

2. No Authentication (CRITICAL) All API endpoints are completely unauthenticated. Anyone can start security scans against arbitrary URLs, potentially using your server to attack others. app.py:481-516

3. Server-Side Request Forgery (HIGH) Users can provide any URL as the scan target, allowing attackers to scan internal networks, localhost services, or use your server as a proxy for attacks. app.py:484-493

4. No CSRF Protection (HIGH) POST endpoints lack CSRF token validation, making them vulnerable to cross-site request forgery attacks. app.py:481-482 app.py:567-568

5. No Rate Limiting (MEDIUM) Endpoints lack rate limiting, allowing abuse and denial-of-service attacks.

sastrophy•2mo ago
Thank you so much for taking the time to review the code and pointing these out! I really appreciate it. To clarify: SiteIQ is designed to run locally on your own machine (localhost:5000) as a personal security testing tool - similar to how you'd run Burp Suite or OWASP ZAP locally. It's not meant to be deployed as a public-facing web service. That said, your points are absolutely valid and I'll definitely work on fixing these. This is my first open source project, so feedback like this helps me learn a lot. Thanks again!