Your Website Has Vulnerabilities.
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Enter your URL and get a full security audit in under 3 minutes — exposed API keys, outdated CVE libraries, CORS misconfigurations, insecure cookies, admin panel exposure, and more. The same scan also checks GDPR/CCPA privacy and ADA compliance automatically.
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13 Security Vulnerabilities We Scan For
Exposed API Keys & Credentials
Scans page source and JS bundles for Stripe, AWS, Google, GitHub, Twilio, and SendGrid keys. Exposed credentials are scraped by bots within minutes of deployment.
Outdated Libraries (CVEs)
Detects jQuery, Bootstrap, lodash, Angular, and other libraries with known CVE entries. Exploits for documented CVEs are publicly available and actively used.
Security Headers
Checks Content-Security-Policy, HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy. Missing CSP is present on ~80% of hacked sites.
CORS Misconfiguration
Detects wildcard origins with credentials enabled — allowing any site to make authenticated API calls on behalf of your users.
Insecure Cookie Flags
Checks session and auth cookies for missing HttpOnly (prevents JS theft), Secure (HTTPS-only), and SameSite (CSRF protection) flags.
Sensitive File Exposure
Probes for publicly accessible .env, .git/config, wp-config.php, .htaccess, and backup files containing database credentials and API keys.
Admin Panel Exposure
Checks if /admin, /wp-admin, /phpmyadmin, and common admin paths are publicly reachable — a first-stop for brute-force and credential-stuffing attacks.
Mixed Content
HTTP resources (scripts, images, iframes) loaded on HTTPS pages bypass TLS encryption entirely and can be intercepted or replaced on the wire.
Subresource Integrity (SRI)
CDN-hosted scripts without integrity hashes can be silently replaced if the CDN is compromised. SRI ensures only the exact expected file runs in your users' browsers.
Server Info Disclosure
Server and X-Powered-By headers revealing exact software versions (nginx/1.14.2, PHP/7.4.3) let attackers target known exploits for your specific stack.
Debug Info Disclosure
Stack traces, error messages, and debug output exposed in responses reveal internal file paths, database schemas, and framework internals.
Dangerous JS Patterns
Detects eval(), document.write(), and innerHTML assignments that process external data — common vectors for XSS attacks that steal session tokens and redirect users.
SSL/TLS Configuration
Validates certificate expiry, checks for expired or self-signed certs, and flags missing HSTS headers that allow protocol downgrade attacks.
Why Website Security Scanning Matters
The average cost of a data breach reached $4.88 million in 2024 according to IBM — and the majority of breaches start with a vulnerability that could have been detected by an automated scan. Exposed API credentials, outdated libraries, and misconfigured security headers are not exotic attack techniques: they are the top three entry points attackers use against websites today.
Automated bots continuously crawl the web scanning for known vulnerabilities. Within minutes of a new site going live, it will be probed for exposed .env files, admin panels, and common CVE-affected library versions. The threat is not targeted — it is indiscriminate and constant.
The Most Common Website Vulnerabilities in 2025
Across millions of web scans, the same vulnerabilities appear repeatedly. Missing Content-Security-Policy headers are found on approximately 80% of websites — leaving them fully exposed to cross-site scripting attacks. Outdated jQuery versions with XSS CVEs are still running on tens of millions of production sites. Exposed API keys in JavaScript bundles are discovered by researchers weekly; AWS keys alone generate automated API calls within four minutes of being published to GitHub.
CORS misconfigurations are particularly dangerous for SaaS products and APIs: a wildcard origin policy combined with credentials allows any website to make authenticated API calls on behalf of a logged-in user, silently exfiltrating data without the user ever knowing.
What OWASP Top 10 Means for Your Website
The OWASP Top 10 is the industry-standard classification of the most critical web application security risks. ComplixAI's security scanner maps every finding to the relevant OWASP category — broken access control, security misconfiguration, vulnerable and outdated components, security logging failures, and more. This gives your development team a prioritized remediation framework that aligns with what security auditors, enterprise buyers, and compliance frameworks (SOC 2, ISO 27001, PCI DSS) look for.
Website Security Scanner FAQ
What does a website security scanner check for?▼
ComplixAI checks 13 attack vector categories: exposed API keys and credentials in page source, outdated JavaScript libraries with known CVEs (jQuery, lodash, Bootstrap), missing HTTP security headers (CSP, HSTS, X-Frame-Options), CORS misconfigurations, insecure cookie flags, mixed content, missing Subresource Integrity, accessible admin panels, exposed sensitive files (.env, .git/config), server information disclosure, dangerous JavaScript patterns, and debug information leakage.
How do API keys end up exposed on websites?▼
The most common causes: developers commit .env files to public repositories (which then get deployed), API keys are hardcoded directly in client-side JavaScript bundles, build tools inline environment variables into the frontend code without access restrictions, and third-party scripts include credentials. Once exposed, keys are scraped by automated bots within minutes. The average cost of a cloud credential exposure incident is $1.3M according to IBM's Cost of a Data Breach report.
What are CVE vulnerabilities and why do they matter for websites?▼
CVE (Common Vulnerabilities and Exposures) entries document publicly known security flaws in software libraries. If your site uses jQuery 1.x, for example, it has multiple documented CVEs for XSS and prototype pollution — exploits are publicly available. Attackers scan for sites running vulnerable library versions and exploit them automatically. Using a CDN-hosted version of a library does not protect you if it's an old version.
What security headers should every website have?▼
The minimum set: Content-Security-Policy (prevents XSS by controlling which scripts can run), Strict-Transport-Security (forces HTTPS connections), X-Frame-Options (prevents clickjacking), X-Content-Type-Options (prevents MIME-type sniffing), and Referrer-Policy. A missing CSP header is the single most common security header finding — it's absent on roughly 80% of websites, leaving them fully exposed to cross-site scripting attacks.
What is CORS misconfiguration and how is it exploited?▼
CORS (Cross-Origin Resource Sharing) controls which domains can make requests to your API. A misconfigured CORS policy — typically `Access-Control-Allow-Origin: *` combined with `Access-Control-Allow-Credentials: true` — allows any website to make authenticated requests to your API on behalf of a logged-in user. Attackers exploit this by hosting a malicious page that silently calls your API using the victim's session cookies.
How often should I scan my website for security issues?▼
At minimum: after every deployment, after installing any new third-party script or library, and monthly as a baseline. High-traffic or e-commerce sites handling payment data should scan continuously. The average time between a vulnerability being introduced and it being discovered internally is 197 days — automated scanning dramatically reduces this window.
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