CVE-2026-45314

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the channel webhook create/update flow accepts arbitrary profile_image_url values, including data:image/svg+xml;base64,... payloads. The profile image endpoint then decodes and serves this SVG as image/svg+xml without sanitization, allowing attacker-controlled script handlers (for example onload) to execute when the profile-image URL is opened in the browser. This vulnerability is fixed in 0.9.3.

References

https://github.com/open-webui/open-webui/security/advisories/GHSA-3856-3vxq-m6fc

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4