Security Advisory

CVE-2026-44549

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-15 21:45:16

Last updated 2026-05-18 12:47:12

Assigner GitHub_M

CVSS score 7.3

State PUBLISHED

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.0, Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheet_to_html to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. This vulnerability is fixed in 0.8.0.

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