CVE-2026-53555: SQLBot stored cross-site scripting through uploaded SVG assistant logo

Summary

SQLBot, a Text-to-SQL system built on large language models and RAG, stores uploaded image/svg+xml assistant UI logos without sanitizing embedded active content before version 1.9.0. An authenticated uploader can submit such a file through PATCH /api/v1/system/assistant/ui, and SQLBot serves it inline from the same origin via GET /api/v1/system/assistant/picture/{filename}. When another user loads the file, embedded JavaScript runs in the SQLBot web application context with access to the victim's session data and actions.

Mitigation

Fixed in 1.9.0.

Topics

• Retrieval-augmented generation

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