CVE-2026-53555

Stored XSS via SVG Upload

MEDIUM
5.1
CVSS Score
Published: September 17, 2026 at 09:40 PM UTC
Updated: September 23, 2026 at 05:30 PM UTC
1 product affected across 1 vendorSQLBot

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

SQLBot is an intelligent Text-to-SQL system based on large language models and RAG. Prior to 1.9.0, an authenticated uploader can submit an image/svg+xml assistant UI logo through PATCH /api/v1/system/assistant/ui, and SQLBot stores the SVG without sanitizing or validating embedded active content. SQLBot later serves the file inline from the same application origin through GET /api/v1/system/assistant/picture/{filename}. When another user loads that generated resource, JavaScript embedded in the SVG executes in the SQLBot web application context, resulting in stored cross-site scripting with access to data and actions available to the victim's session. This issue is fixed in version 1.9.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.9.0
Affected range stops below 1.9.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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