CVE-2026-109290 — Open WebUI 0.11.1 before 0.11.4 Stored XSS via DOCX Preview
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 cr…
Published: 2026-10-12 · CVSS: 8.4 · CVSS 4.0
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.
Source: CVE Program · Revision 2bc2f154a9513fd639cf69e09a5cddfaedf57bdc