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 profileimageurl process. An attacker can execute arbitrary JavaScript in the context of another authenticated user's session by crafting a malicious SVG image as their OAuth...

Server-side Request Forgery (SSRF)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through getcontentfromurl in retrieval/utils.py, SafeWebBaseLoader in web/base.py, and imageedits in routers/images.py. An attacker can cause the server to fetch internal...

Server-side Request Forgery (SSRF)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through the validateurl function in the URL parsing and request-routing path. An attacker can reach internal or loopback targets by supplying a URL containing a backslash, tab...

Open WebUI has a Server-Side Request Forgery (SSRF) bypass in `validate_url`

Summary In the open-webui project, a parsing difference between the urlparse and requests libraries led to an SSRF bypass vulnerability. Details In the current project, URL validation is performed using the function validateurl. The current checking logic uses urlparse to parse the hostname part ...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization in the GET /api/tasks and POST /api/tasks/stop/taskid endpoints, which lack proper ownership checks. An attacker can enumerate and terminate background tasks belonging to other users by...

Open WebUI: Low-privilege authenticated users can enumerate and stop global background tasks, causing system-wide chat disruption

Summary Any authenticated user with low privileges can enumerate active background tasks across the system and stop tasks belonging to other users via the GET /api/tasks and POST /api/tasks/stop/taskid methods. This allows a casual user to disrupt system-wide chat usage by continuously canceling...

Authorization Bypass Through User-Controlled Key

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the retrieval process, specifically when validating access to knowledge base collections by UUID. An attacker can access, modify, or delete another user's...

Open WebUI Vulnerable to Unauthenticated RAG Configuration Disclosure

Vulnerability Type: Information Disclosure / Missing Authentication Severity: Medium Component: backend/openwebui/routers/retrieval.py — getstatus GET / Affected Endpoint: GET /api/v1/retrieval/ Affected Version: Open WebUI main branch — confirmed unpatched through v0.9.2 Authentication Required:...

Missing Authentication for Critical Function

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the getstatus function. An attacker can access sensitive configuration details by sending an unauthenticated HTTP GET request to the affected endpoint...

GHSA-65PG-QHHW-MXWG Open WebUI Vulnerable to Unauthenticated RAG Configuration Disclosure

Vulnerability Type: Information Disclosure / Missing Authentication Severity: Medium Component: backend/openwebui/routers/retrieval.py — getstatus GET / Affected Endpoint: GET /api/v1/retrieval/ Affected Version: Open WebUI main branch — confirmed unpatched through v0.9.2 Authentication Required:...

GHSA-RJMP-VJF2-QF4G Open WebUI: Mass Assignment via FeedbackForm extra=allow Allows Feedback User ID Spoofing and Evaluation Data Manipulation

Mass Assignment in Feedback Creation Allows User ID Spoofing and Evaluation Data Manipulation Summary The POST /api/v1/evaluations/feedback endpoint in Open WebUI v0.9.2 is vulnerable to mass assignment via FeedbackForm, which uses modelconfig = ConfigDictextra='allow'. Due to an insecure...

Improperly Controlled Modification of Dynamically-Determined Object Attributes

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes through the FeedbackForm and insertnewfeedback paths in backend/openwebui/models/feedbacks.py. An attacker can forge feedback...

Open WebUI: Mass Assignment via FeedbackForm extra=allow Allows Feedback User ID Spoofing and Evaluation Data Manipulation

Mass Assignment in Feedback Creation Allows User ID Spoofing and Evaluation Data Manipulation Summary The POST /api/v1/evaluations/feedback endpoint in Open WebUI v0.9.2 is vulnerable to mass assignment via FeedbackForm, which uses modelconfig = ConfigDictextra='allow'. Due to an insecure...

Incorrect Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Authorization through the updatetoolsbyid handler in routers/tools.py. An attacker can execute arbitrary Python code on the server by sending a tool update that modifies the tool's content after...

NPM: Open WebUI: Missing `workspace.tools` Authorization Check on Tool Update Endpoint Allows Privilege Escalation to Code Execution

NPM: Open WebUI: Missing workspace.tools Authorization Check on Tool Update Endpoint Allows Privilege Escalation to Code Execution vulnerability discovered by ? in WordPress Npm open-webui versions 0.9.5...

Insertion of Sensitive Information Into Sent Data

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Insertion of Sensitive Information Into Sent Data through the getmodelbyid handler in routers/models.py. An attacker can read the admin-curated system prompt and other model behavior settings by sending a GET...

Open WebUI has an IDOR vulnerability in the pin_channel_message API endpoint

Summary Pin/Unpin is a write operation modifies the message's ispinned , pinnedby, pinnedat fields, but in standard channels it only checks read permission, allowing users with read-only access to pin/unpin any message. Details...

Authorization Bypass Through User-Controlled Key

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key through the updatemessagebyid and deletemessagebyid handlers in channels.py. An attacker can overwrite or remove another member’s group or direct message conte...

Open WebUI has an IDOR vulnerability in the update_message_by_id API endpoint

Summary An IDOR vulnerability exists in the Channels feature of Open WebUI, allowing any channel member to modify messages sent by other members including administrators within the same channel. This vulnerability affects the latest version v0.8.12 of Open WebUI. Details In the updatemessagebyid...

Improper Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Improper Authorization via the bypassfilter parameter in the HTTP query string, which is unintentionally exposed in the route handler. An attacker can gain unauthorized access to restricted models by appendin...