🛡️ Sentinel: [security improvement] Harden CSP and externalize assets#69
🛡️ Sentinel: [security improvement] Harden CSP and externalize assets#69
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This change improves the security of the application by: 1. Moving inline CSS and JavaScript to external files (`css/style.css` and `js/script.js`). 2. Hardening the Content Security Policy (CSP) by removing `'unsafe-inline'`. 3. Adding `object-src 'none'` and `base-uri 'self'` to the CSP for defense in depth. These changes significantly reduce the risk of Cross-Site Scripting (XSS) and other injection attacks. Co-authored-by: Shin5hi <200498632+Shin5hi@users.noreply.github.com>
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🛡️ Sentinel: [security improvement]
🚨 Severity: MEDIUM (Security Enhancement)
💡 Vulnerability:
The application relied on inline styles and scripts, which required
'unsafe-inline'in the Content Security Policy. This is a common weakness that makes XSS attacks much easier to execute.🎯 Impact:
If an attacker could inject content into the page, they could execute arbitrary JavaScript or manipulate the UI with malicious styles.
🔧 Fix:
<style>and<script>content into external files.index.htmlto link to these external assets.default-src 'self'; style-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self';.'unsafe-inline'fromstyle-srcandscript-src.✅ Verification:
PR created automatically by Jules for task 10582845462104135374 started by @Shin5hi