🔒 Disable cleartext traffic in Android manifest

[visatk]

🎯 What: The vulnerability fixed

Missing Cleartext Traffic Restriction in AndroidManifest.xml.

⚠️ Risk: The potential impact if left unfixed

Cleartext HTTP traffic is vulnerable to eavesdropping and MITM attacks. If the app communicates with a server over HTTP, an attacker could intercept sensitive information like user credentials, API keys, or personal data.

🛡️ Solution: How the fix addresses the vulnerability

Add android:usesCleartextTraffic="false" to the <application> tag in android/app/src/main/AndroidManifest.xml. This explicitly disables cleartext traffic for the application, enforcing the use of secure protocols like HTTPS.

Verified the change by ensuring the XML parses correctly and the attribute is present using a custom script. Flutter commands (analyze/test) were attempted but timed out in the environment.

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PR created automatically by Jules for task 18273677928252473063 started by @visatk

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