CVE-2025-46571

MEDIUM EPSS 20.5%

Published May 5, 20251y ago · Modified Jun 17, 20261w ago

5.3 CVSS 4.0

Medium

Published May 5, 2025 1y ago

Last Modified Jun 17, 2026 1w ago

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.6.6, low privileged users can upload HTML files which contain JavaScript code via the `/api/v1/files/` backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files uploaded by low-privileged users can only be viewed by admins or themselves, limiting the impact of this vulnerability. A link to such a file can be sent to an admin, and if clicked, will give the low-privileged user complete control over the admin's account, ultimately enabling RCE via functions. Version 0.6.6 contains a fix for the issue.

CVSS Details

Base Score

5.3

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction A

Scope X

Threat Intelligence

EPSS Exploit Probability

20.5% percentile

Exploit & Patch Status

Public Exploit Known

Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

Vendor	Product	Version	Range
openwebui	open_webui	*	<0.6.6

References 3

github.com https://github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/files.py#L434-L438

Product
github.com https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0

Patch
github.com https://github.com/open-webui/open-webui/security/advisories/GHSA-8gh5-qqh8-hq3x

ExploitVendor Advisory

Remediation

github.com https://github.com/open-webui/open-webui/commit/ef2aeb7c0eb976bac759e59ac359c94a5b8dc7e0

Patch