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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2026-109288

Open WebUI before 0.11.4 Stored XSS via javascript: URLs in Markdown Links

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

Open WebUI before 0.11.4 contains a stored cross-site scripting vulnerability in MarkdownInlineTokens.svelte, which renders markdown link URLs into anchor hrefs without validating their scheme. Authenticated users can embed javascript: links in shared chats that, when clicked by a victim, steal the victim's JWT from local storage, including admins' tokens.

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

References