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ProfileServlet.java
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39 lines (33 loc) · 1.3 KB
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// File: ProfileServlet.java
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
public class ProfileServlet extends HttpServlet {
private Map<Integer, String> userProfiles = new HashMap<>();
public ProfileServlet() {
userProfiles.put(1, "User1's secret data");
userProfiles.put(2, "User2's secret data");
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String idParam = req.getParameter("id");
if (idParam != null) {
int id = Integer.parseInt(idParam);
String profileData = userProfiles.get(id);
if (profileData != null) {
resp.getWriter().write("<html><body>");
resp.getWriter().write("<h1>Profile Data:</h1>");
resp.getWriter().write(profileData); // Vulnerable point
resp.getWriter().write("</body></html>");
} else {
resp.getWriter().write("Profile not found.");
}
} else {
resp.getWriter().write("Please provide an ID.");
}
}
}