gcdRadar
archive/Patch now/AIR-2026-0796
closedclosed 5 May 2025Patch now2 Disclosed vulnerabilityAI

CVE-2025-46571: Open WebUI stored XSS via uploaded HTML file

Open WebUI

Low privileged users can upload HTML files containing JavaScript code via an API endpoint in Open WebUI. The uploaded script executes in the browser of anyone who opens the file.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
6.4
EPSS
<0.01 · top 69% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
5 May 2025
last update
7 Jul 2026
CVE ids
CVE-2025-46571other records

Timeline · 2

  1. 5 May 2025CVE-2025-46571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.
  2. 7 Jul 2026CVE-2025-46571: Open WebUI allows limited stored XSS vila uploaded html file

Sources · 2

Advisories and databases

  1. 2025-05-05
    CVE-2025-46571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-46571
  2. 2026-07-07
    CVE-2025-46571: Open WebUI allows limited stored XSS vila uploaded html file
    GitHub Advisory Database · github.com/advisories/GHSA-8gh5-qqh8-hq3x

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
xss
dates
happened 7 Jul 2026 · first reported 5 May 2025
origin
GitHub Advisory Database
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2025-46571: Open WebUI stored XSS via uploaded HTML file

https://gcdradar.vercel.app/incidents/cve-2025-46571-open-webui-stored-xss-via-uploaded-html-file · AIR-2026-0796 · closed 2025-05-05

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-05-05 (happened 2026-07-07)
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2025-46571
- CVSS: 6.4

## Summary

Low privileged users can upload HTML files containing JavaScript code via an API endpoint in Open WebUI. The uploaded script executes in the browser of anyone who opens the file.

## What to do

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

## Latest updates

- 2026-07-07: CVE-2025-46571: Open WebUI  allows limited stored XSS vila uploaded html file (https://github.com/advisories/GHSA-8gh5-qqh8-hq3x)
- 2025-05-05: CVE-2025-46571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. (https://nvd.nist.gov/vuln/detail/CVE-2025-46571)

## Sources

- 2025-05-05 NVD: CVE-2025-46571: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. https://nvd.nist.gov/vuln/detail/CVE-2025-46571
- 2026-07-07 GitHub Advisory Database: CVE-2025-46571: Open WebUI  allows limited stored XSS vila uploaded html file https://github.com/advisories/GHSA-8gh5-qqh8-hq3x

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

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