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fix(validate): add input validation for upgradeId and userType #185

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fix(validate): add input validation for upgradeId and userType #185

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9 changes: 9 additions & 0 deletions src/app/api/validate/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,15 @@ export async function POST(req: NextRequest) {
);
}

// Validate inputs to prevent path traversal attacks
const safePathPattern = /^[a-zA-Z0-9_-]+$/;
if (!safePathPattern.test(upgradeId) || !safePathPattern.test(userType)) {
return NextResponse.json(
{ message: 'Invalid parameters: upgradeId and userType must only contain alphanumeric characters, underscores, and hyphens' },
{ status: 400 }
);
}

const trimmedUpgradeId = upgradeId.trim();
const trimmedUserType = userType.trim();
const normalizedNetwork = network.trim().toLowerCase();
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