CVE-2026-45299: Open WebUI stored cross-site scripting in profile picture

# CVE-2026-45299: Open WebUI stored cross-site scripting in profile picture

https://gcdradar.vercel.app/incidents/cve-2026-45299-open-webui-stored-cross-site-scripting-in-pro · AIR-2026-0676 · closed 2026-05-14

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-05-14
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-45299
- CVSS: 5.4

## Summary

Open WebUI suffered from a stored cross-site scripting vulnerability due to accepting unvalidated data URIs in user profile pictures. A vulnerability advisory has been published with remediation details.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-05-15: CVE-2026-45299: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2026-45299)
- 2026-05-14: CVE-2026-45299: Open WebUI has Stored Cross-Site Scripting In Profile Picture (https://github.com/advisories/GHSA-6gh2-q7cp-9qf6)

## Sources

- 2026-05-14 GitHub Advisory Database: CVE-2026-45299: Open WebUI has Stored Cross-Site Scripting In Profile Picture https://github.com/advisories/GHSA-6gh2-q7cp-9qf6
- 2026-05-15 NVD: CVE-2026-45299: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2026-45299

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.