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CVE-2026-44549

8.7 Élevée

Publiée le 16/05/2026 à 00:16 · Modifiée le 17/06/2026 à 12:50 · Analysée par le NVD · Source : security-advisories@github.com

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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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 7.3 Élevée security-advisories@github.com CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
3.1 8.7 Élevée nvd@nist.gov (NVD) CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Faiblesses (CWE)

Références

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