OWASP Top 10:2025

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the OWASP Top 10

Plug in your URL and we'll check it for the most common web security issues — from broken access control to injection to supply chain problems.

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OWASP Top 10 — 2025

The ten biggest security risks for web apps right now. Updated by the OWASP Foundation based on breach data and vulnerability reports from hundreds of organizations worldwide.

A01:2025

Broken Access Control

When users can do things they're not supposed to. IDOR, privilege escalation, path traversal, CORS issues. SSRF got merged in here for 2025.

A02:2025

Security Misconfiguration

Default passwords left in prod, open S3 buckets, stack traces in error pages, unnecessary services running. Still the most common finding out there.

A03:2025 new

Software Supply Chain Failures

Poisoned npm packages, compromised build pipelines, typosquatting. After SolarWinds and the xz backdoor, OWASP gave this its own category.

A04:2025

Cryptographic Failures

Passwords stored in plaintext, data sent over HTTP, MD5 still in use somewhere. Anything where sensitive data isn't properly encrypted — in transit or at rest.

A05:2025

Injection

SQL injection, XSS, command injection, LDAP, template injection. You take user input and shove it into a query without sanitizing — bad things happen.

A06:2025

Insecure Design

Architecture-level problems you can't patch with better code. No rate limiting on password resets, no threat modeling, business logic that's fundamentally flawed.

A07:2025

Authentication Failures

Weak password requirements, credential stuffing working because there's no MFA, session tokens that don't expire. The stuff that lets attackers log in as someone else.

A08:2025

Data Integrity Failures

Auto-updates without checking signatures, CI/CD pipelines anyone can push to, deserializing untrusted data. When you can't trust that code or data hasn't been tampered with.

A09:2025

Security Logging & Alerting Failures

No logs for login attempts, no alerts when someone's brute-forcing your API, no audit trail. Attackers love it when nobody's watching.

A10:2025 new

Mishandling of Exceptional Conditions

Stack traces leaking internal paths, error messages revealing database structure, race conditions in failure handlers. When your app breaks, it shouldn't break open.

What it checks

Over 200 automated tests across all ten categories.

Access Control

IDOR, privilege escalation, path traversal, forced browsing, CORS, SSRF

Injection

SQLi, XSS (reflected/stored/DOM), command injection, LDAP, SSTI

Auth & Sessions

Cookie flags, JWT issues, brute force, session fixation, MFA bypass

Config

Security headers, TLS, default creds, directory listing, verbose errors

Crypto

TLS version, cipher suites, cert chain, HSTS, mixed content

Supply Chain

Outdated libraries, known CVEs, JS deps, CDN integrity, SRI hashes

FAQ

What is the OWASP Top 10?

It's a list of the ten most common and dangerous web app security risks. The OWASP Foundation puts it together every few years using real breach data from hundreds of organizations. If your app is vulnerable to any of these — you've got a problem. The list has been around since 2003 and the 2025 edition is the latest.

What's different in the 2025 version?

Two new categories showed up. Supply Chain Failures (A03) — because after SolarWinds, Log4Shell, and the xz backdoor, it was overdue. And Mishandling of Exceptional Conditions (A10) for apps that leak info through error messages and crash in exploitable ways. SSRF got folded into Broken Access Control instead of being its own thing.

How does the scanner work?

You type in a URL, hit scan, and an AI agent goes through all the OWASP categories automatically. It checks access control, tries injection payloads, looks at your TLS setup, inspects headers — the whole list. Results come back in real time so you can see what's happening.

How long does it take?

Depends on the site. A small app takes a couple minutes. Bigger targets with lots of endpoints and forms — more like 10-15. You'll see findings as they come in, so you don't have to wait for the whole thing to finish.

Can I scan any site?

Only sites you own or have permission to test. Scanning someone else's app without authorization is illegal in most places. Get written permission first if it's not your own infrastructure.

Go deeper than the Top 10

The full scanner covers hundreds of vulnerability types — IDOR, business logic bugs, auth bypasses, API issues. Think of it as having a pentester available whenever you need one.

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