🛡️ Sentinel: [HIGH] Fix XSS vulnerability in WebView

[TargetMisser]

🚨 Severity: HIGH
💡 Vulnerability: Used injectJavaScript with string interpolation to pass user-controlled image data (base64 strings) into a hidden WebView, introducing a potential Cross-Site Scripting (XSS) vulnerability.
🎯 Impact: Attackers could potentially break out of the string escape sequence and execute arbitrary JavaScript code within the WebView's context.
🔧 Fix: Replaced injectJavaScript string injection with React Native WebView's native postMessage communication. Event listeners were added to the WebView HTML template to securely receive data payloads and invoke runTesseract.
✅ Verification: Ran TypeScript compiler and Jest to confirm there are no broken types and the build passes. Verified code correctness via code review.

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PR created automatically by Jules for task 7746433456148408576 started by @TargetMisser

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Project	Deployment	Actions	Updated (UTC)
flight-work-app	Building	Preview, Open in v0	Apr 18, 2026 1:28am