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fix(security): restrict exam answer key access to authors and admins #215

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fix(security): restrict exam answer key access to authors and admins #215

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7 changes: 5 additions & 2 deletions backend/controllers/examController.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,8 +44,11 @@ exports.getExam = async (req, res) => {
const exam = await Exam.findById(req.params.id);
if (!exam) return res.status(404).json({ success: false, error: "Exam not found" });

// Hide answers from students
if (req.user.role === 'student') {
const isCreator = req.user.id === exam.creator.toString();
const isAdmin = req.user.role === 'admin';

// Hide answers if the user is not the creator and not an admin
if (!isCreator && !isAdmin) {
const examData = exam.toObject();
examData.questions.forEach(q => delete q.correctAnswer);
return res.status(200).json({ success: true, data: examData });
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