hubzoid (>=0.2.2 <=0.4.5), openwebui-token-tracking (>=0.1.7 <=0.1.10) +1 more potentially affected by CVE-2026-45317 via open-webui (>=0.6.0 <=0.8.8)

open-webui PYPI version =0.6.0, =0.2.2, =0.1.7, =0.1.0, =0.1.5 Source cves: CVE-2026-45317 Source advisory: OSV:GHSA-J6W6-986J-2M2M...

GHSA-J6W6-986J-2M2M Open WebUI Vulnerable to Cross-Site Request Forgery (CSRF) via Image URL Manipulation

Summary An application-wide Cross-Site Request Forgery CSRF vulnerability was found Open-WebUl's image uploading functionality. An attacker can set an image URL to a malicious endpoint, allowing them to perform actions on behalf of a victim user. Any authenticated user can exploit this...

Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)

Related advisory This advisory tracks a regression of the original Excel-preview XSS that was publicly disclosed and patched under GHSA-jwf8-pv5p-vhmc patched in v0.8.0. The same root cause — XLSX.utils.sheettohtml output rendered via @html excelHtml without DOMPurify — was reintroduced sometime...

hubzoid (>=0.2.2 <=0.4.5), openwebui-token-tracking (>=0.1.7 <=0.1.10) +1 more potentially affected by CVE-2026-45318 via open-webui (>=0.6.0 <=0.8.8)

open-webui PYPI version =0.6.0, =0.2.2, =0.1.7, =0.1.0, =0.1.5 Source cves: CVE-2026-45318 Source advisory: OSV:GHSA-HCWP-82G6-8WXC...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the rendering of user-uploaded Office files as HTML using the Svelte @html directive without proper sanitization. An attacker can execute arbitrary JavaScript in the context of oth...

Incorrect Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Incorrect Authorization via the pinnotebyid process. An attacker can modify the ispinned status of a shared note without proper authorization by sending a POST request to the relevant endpoint while only havi...

Open WebUI: Read-Only Users Can Toggle Note Pin Status via Incorrect Permission Check (Write via Read-Only Access)

Summary The POST /api/v1/notes/id/pin endpoint performs a write operation toggling the ispinned field but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. All other write endpoin...

GHSA-JX2X-J75F-XQ3J Open WebUI: Read-Only Users Can Toggle Note Pin Status via Incorrect Permission Check (Write via Read-Only Access)

Summary The POST /api/v1/notes/id/pin endpoint performs a write operation toggling the ispinned field but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. All other write endpoin...

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 parameter in the webhook creation or update process. An attacker can execute arbitrary JavaScript in the context of the application by supplying a crafted SVG...

GHSA-3856-3VXQ-M6FC Open WebUI has XSS via SVG in /api/v1/channels/webhooks/{webhook_id}/profile/image

As part of our research on improving our AI pentest, we have uncovered the following issue in Open WebUI. We've manually verified and tided up the report, but you can also find the original agent finding at the bottom of this report. Summary The channel webhook create/update flow accepts arbitrar...

hubzoid (>=0.2.2 <=0.4.5), openwebui-token-tracking (>=0.1.7 <=0.1.10) +1 more potentially affected by CVE-2026-45314 via open-webui (>=0.6.0 <=0.8.8)

open-webui PYPI version =0.6.0, =0.2.2, =0.1.7, =0.1.0, =0.1.5 Source cves: CVE-2026-45314 Source advisory: OSV:GHSA-3856-3VXQ-M6FC...

Reliance on File Name or Extension of Externally-Supplied File

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Reliance on File Name or Extension of Externally-Supplied File via the audio transcription upload process. An attacker can execute arbitrary JavaScript in the context of another user's session by uploading a...

hubzoid (>=0.2.2 <=0.4.5), openwebui-token-tracking (>=0.1.7 <=0.1.10) +1 more potentially affected by CVE-2026-45315 via open-webui (>=0.6.0 <=0.8.8)

open-webui PYPI version =0.6.0, =0.2.2, =0.1.7, =0.1.0, =0.1.5 Source cves: CVE-2026-45315 Source advisory: OSV:GHSA-M8F9-9WHG-F4XR...

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-2026-41175

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.5.7 Description An issue exists where a user can modify another user's model regardless of whether its visibility is set to Private. By altering access permissions during the editing process, unauthorized access...