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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-109290

Open WebUI 0.11.1 before 0.11.4 Stored XSS via DOCX Preview

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Open WebUI from 0.11.1 before 0.11.4 contains a stored cross-site scripting vulnerability in DocxPreview.svelte that allows authenticated users to execute script by uploading crafted DOCX attachments. Attackers can embed an OOXML altChunk HTML part or script-scheme hyperlink to steal a previewing administrator's session token from local storage and take over the instance.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

open-webui open-webui

Default version status: unaffected

  • 0.11.1 to < 0.11.4affected
  • 0.11.4unaffected
pkg:pypi/open-webui

References