GHSA-M8F9-9WHG-F4XR Open WebUI has stored XSS via attacker-controlled file extension in /api/v1/audio/transcriptions

Summary The audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHEDIR/audio/transcriptions/.. The /cache/path route serves these files via FileResponse, which sets Content-Type from the on-disk extension and emits no...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS via the HTML rendering view. An attacker can execute arbitrary HTML or JavaScript in the user's context by injecting malicious scripts into embedded file in the chat that later shared...

GHSA-4VRC-M9CH-6M3R Open WebUI has stored XSS via the HTML renedering view

Summary Through the HTML rendering view, scripts can be injected and executed. The finding resulted from a penetration test for a customer. It is suspected that the root cause of the issue lies within the core of Open WebUI, which is why it is being reported as a security issue here. Tested on Op...

Open WebUI has stored XSS via the HTML renedering view

Summary Through the HTML rendering view, scripts can be injected and executed. The finding resulted from a penetration test for a customer. It is suspected that the root cause of the issue lies within the core of Open WebUI, which is why it is being reported as a security issue here. Tested on Op...

Incorrect Permission Assignment for Critical Resource

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource in the files/ endpoints. An attacker can list, access and delete every uploaded file due to absence of authorisation on these endpoints. Remediation Upgra...

GHSA-R8WH-8M7R-FH33 Open WebUI: Missing permission check in files API allows authenticated users to list, access and delete every uploaded file

Summary A missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. Details All files/ related endpoints lack permission checks. Listing all files For example, let's see how file listing ...

PT-2026-41176

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.6.31 Description A Cross-Site Scripting issue exists in the SVG renderer implementation. This allows the permanent storage of HTML or JavaScript code within the application, which is then executed in the context ...

EUVD-2026-30109

Hermes WebUI prior to 0.51.44 - Release T contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the...

CVE-2026-22677

Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace fie...

CVE-2026-22677

Hermes WebUI prior to version 0.51.44 (Release T) contains a path traversal vulnerability in the session import endpoint . An authenticated attacker can import a crafted session with an unrestricted workspace value, allowing access to arbitrary files readable by the WebUI process. Attackers can s...

CVE-2026-22677

Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace fie...

CVE-2026-22677 Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint

Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace fie...

CVE-2026-22677: Improper Limitation of a Pathname to a Restricted Directory

Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers can supply a blocked filesystem root in the workspace fie...

CVE-2025-15633

An improper authorization vulnerability in HCL BigFix WebUI allows an authenticated user without Master Operator privileges to access internal data site names, versions, and configuration variables and bypass privilege requirements via unprotected endpoints lacking adequate security headers...

CVE-2025-15634

A missing authorization vulnerability in HCL BigFix WebUI allows an authenticated user without proper permissions to view sensitive environmental information via direct URL access to the unauthorized page...

CVE-2026-44226

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/ is reachable without authentication and renders attacker-controlled template names, an...

Open WebUI's Insecure Message Access Breaks Authorization

Description There's an IDOR in the channels message management system that allows authenticated users to modify or delete any message within channels they have read access to. The vulnerability exists in the message update and delete endpoints, which implement channel-level authorization but...

GHSA-J3FW-WC48-29G3 Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

Insufficient Session Expiration

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Insufficient Session Expiration via misconfiguration of the CORSMiddleware module and improper session management. An attacker can gain unauthorized access and execute arbitrary code by enticing an...