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fix: add XSS sanitization for chat messages #1742

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Merged
ritesh-1918 merged 1 commit into from
Jun 5, 2026
Merged

fix: add XSS sanitization for chat messages #1742

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11 changes: 10 additions & 1 deletion Frontend/src/components/shared/TicketChat.jsx
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Original file line number Diff line number Diff line change
@@ -1,4 +1,13 @@
import React, { useState, useRef, useEffect, useCallback } from 'react';

// Basic XSS sanitization: removes script tags and inline event handlers
const sanitizeMessage = (text) => {
if (!text) return text;
return text
.replace(/<script.*?>.*?<\/script>/gi, '')
.replace(/ on\w+="[^"]*"/g, '')
.replace(/ on\w+='[^']*'/g, '');
};
import { Send, User, ShieldCheck, Bot, MessageSquare, Circle, Loader2 } from 'lucide-react';
import { supabase } from "../../lib/supabaseClient";
import useAuthStore from "../../store/authStore";
Expand Down Expand Up @@ -177,7 +186,7 @@ const TicketChat = ({ ticketId, currentUserRole = 'user' }) => {
sender_id: user.id,
sender_name: profile?.full_name || user.email,
sender_role: profile?.role || 'user',
message: content,
message: sanitizeMessage(content),
is_internal: currentIsInternal,
created_at: new Date().toISOString()
};
Expand Down