Analyze websites for OWASP Top 10 security vulnerabilities with severity ratings and actionable remediation guidance. Demo tool for educational purposes.
This is a demo tool that generates sample vulnerability scan results for educational purposes. No actual scanning or network requests are performed.
Enter a URL and start scanning
The #1 risk in OWASP 2021, found in 94% of applications tested. This occurs when users can act outside their intended permissions: accessing other users' data by changing a URL parameter (IDOR), elevating privileges, or bypassing access controls by modifying API requests. In 2023, a broken access control in a major airline's API exposed 12 million passengers' personal data. Defense: enforce access checks server-side, deny by default, and implement proper RBAC.
Previously called “Sensitive Data Exposure,” this covers failures in protecting data at rest and in transit. Common issues: transmitting data over HTTP instead of HTTPS, using weak algorithms (MD5, SHA-1, DES), hard-coded encryption keys, and storing passwords in plaintext. The Equifax breach (2017, 147 million records) was partly due to unpatched TLS vulnerabilities. Defense: encrypt all sensitive data, use TLS 1.3, hash passwords with bcrypt/Argon2.
SQL injection, NoSQL injection, OS command injection, and LDAP injection occur when untrusted data is sent to an interpreter as part of a command or query. A classic SQL injection ' OR 1=1 -- can bypass authentication or dump entire databases. Defense: use parameterized queries (prepared statements), input validation, and ORM libraries. The 2023 MOVEit breach exploited a SQL injection to compromise over 2,600 organizations.
The most commonly found issue: missing security headers, default credentials, unnecessary services enabled, verbose error messages exposing stack traces, and directory listing enabled. 90% of applicationshad some form of misconfiguration in OWASP's testing. This is often the easiest to exploit and the easiest to fix. Defense: automated security header scanning, infrastructure-as-code with security baselines, and regular configuration audits.
The OWASP Top 10 is a standard awareness document for web application security, published by the Open Web Application Security Project. Updated roughly every 3-4 years (latest: 2021), it represents the most critical security risks based on data from hundreds of organizations and over 500,000 vulnerability reports. It is referenced by PCI DSS, NIST, and most compliance frameworks as a baseline for web security testing.
Real scanners (Nessus, Burp Suite, OWASP ZAP) crawl the target website, identify technologies (server, frameworks, libraries), check for known CVEs, test for injection points, analyze HTTP headers, verify TLS configuration, and attempt common misconfigurations. Enterprise scanners can test thousands of checks in minutes. This demo tool simulates the output format to help you understand vulnerability reporting.
Prioritize by severity and exploitability. Critical findings (e.g., TLS 1.0 support, SQL injection) should be fixed immediately. High findings (missing CSP, insecure cookies) within days. Medium findings within weeks. Low and Infoitems during regular maintenance cycles. Focus on the four “quick wins”: HTTPS everywhere, security headers, dependency updates, and input validation.