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LOW: No Input Sanitization for User Content #13

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opened 2026-02-16 22:09:41 +02:00 by Koko210 · 0 comments
Koko210 commented 2026-02-16 22:09:41 +02:00
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User messages and commands are not sanitized before being processed or displayed, potentially allowing XSS or injection attacks.

Where It Occurs

  • bot/commands/ - Command handlers
  • bot/api.py - Web UI endpoints
  • bot/utils/llm.py - Message processing

Why This Is a Problem

  1. XSS: Malicious JavaScript could be injected into web UI
  2. Injection: Special characters could break commands
  3. Display Issues: Unicode, emoji handling inconsistent

What Can Go Wrong

Scenario 1: XSS in Web UI

  1. User sends message with <script>alert('xss')</script>
  2. Web UI displays message without sanitization
  3. JavaScript executes in admin's browser
  4. Attacker steals admin session token

Proposed Fix

Sanitize all user input before storage and display.

Severity

LOW - Web UI exposure limited; Discord API provides some protection.

Files Affected

bot/commands/, bot/api.py, bot/utils/llm.py

User messages and commands are not sanitized before being processed or displayed, potentially allowing XSS or injection attacks. ## Where It Occurs - bot/commands/ - Command handlers - bot/api.py - Web UI endpoints - bot/utils/llm.py - Message processing ## Why This Is a Problem 1. XSS: Malicious JavaScript could be injected into web UI 2. Injection: Special characters could break commands 3. Display Issues: Unicode, emoji handling inconsistent ## What Can Go Wrong ### Scenario 1: XSS in Web UI 1. User sends message with <script>alert('xss')</script> 2. Web UI displays message without sanitization 3. JavaScript executes in admin's browser 4. Attacker steals admin session token ## Proposed Fix Sanitize all user input before storage and display. ## Severity LOW - Web UI exposure limited; Discord API provides some protection. ## Files Affected bot/commands/, bot/api.py, bot/utils/llm.py
Koko210 reopened this issue 2026-02-16 22:17:02 +02:00
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Reference: Koko210/miku-discord#13
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