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HomeAI and Local Automation[AI-013] Generated output introduces unsafe HTML or links
AI and Local Automation8 min•Difficulty: Avanzado

[AI-013] Generated output introduces unsafe HTML or links

Render generated text with contextual escaping and an allowlist of URL schemes.

Ingeniería de Integraciones AnayilUpdated: 2026-10-10

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This answer covers “[AI-013] Generated output introduces unsafe HTML or links”. Read it with the summary and confirm that the symptom and service match what you are experiencing. Available options can vary by plan and account setup.

  • Before changing anything, note what you expected, what happened and roughly when. Check whether the issue affects one page or the whole service.
  • Save the full error message and note recent changes. Hide passwords, access codes, personal data and keys before sharing screenshots or logs.
  • If a step requires administrator access, restarting services or editing server files, stop if you do not administer that server. Send support the service name, error and checks you have already made.

L3 technical diagnosis

Integration / security / operationsSeverity: Medium; high for data exposure or duplicated actions

User symptoms

A response renders active tags, runs script or points to a misleading URL.

Observed code or message

CSP violation / XSS in generated-content preview

Likely root cause

Trusting model output as HTML, disabling escaping or allowing `javascript:`/data URLs enables stored or reflected XSS.

Likely-cause and resolution matrix

Follow a branch only when evidence supports it. A symptom may have more than one cause; do not change layers by guesswork.

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Why it can happen: Professional English translation pending.

How to diagnose (read-only):
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Why it can happen: Professional English translation pending.

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Prerequisites

  • Authorised access to the involved runtime, provider or automation.
  • A test environment and synthetic data; never use customer prompts for diagnostics.
  • A technical owner who can approve network, secret, GPU or resource changes.

Important warnings

  • Do not expose local inference endpoints or webhooks without appropriate authentication, TLS and limits. Never put API keys, private prompts or personal data in commands, screenshots or logs.
  • Commands are diagnostic references. Production changes, Docker/firewall rules and credential rotation require service-owner authorisation.

Step-by-step walkthrough

1. Confirm the symptom and scope

A response renders active tags, runs script or points to a misleading URL. Use synthetic samples with malicious tags and links; inspect rendered DOM, sanitiser, CSP and storage flow.
bash
# Manual staging check: attempt to render <img src=x onerror=alert(1)>
# Ensure output is escaped text; never test against users.
Expected output:
CSP violation / XSS in generated-content preview

2. Correct the responsible component

Render as text by default. If Markdown is required, use a maintained sanitiser with a narrow allowlist; validate URLs against policy-approved `https`/`http` schemes. Keep CSP as additional defence, not the only control.

3. Verify and close exposure

Samples render inertly, create no executable nodes and load no blocked schemes; valid links still work and CSP reports no unexpected violations.
Expected output:
The check confirms the expected result without exposing services or data.

Troubleshooting & Solutions

CSP violation / XSS in generated-content preview

Root cause: Trusting model output as HTML, disabling escaping or allowing `javascript:`/data URLs enables stored or reflected XSS.

Resolution: Render as text by default. If Markdown is required, use a maintained sanitiser with a narrow allowlist; validate URLs against policy-approved `https`/`http` schemes. Keep CSP as additional defence, not the only control.

Rollback and recovery plan

Restore the last approved configuration, stop the affected workflow and revoke any exposed credential. If real data was processed through an unauthorised path, retain minimal redacted records and follow the internal incident-response process.

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