GHSA-4PCG-253R-RF9W Open WebUI's chat completion API allows tool restrictions to be bypassed

Summary Open WebUI v0.6.43 contains a vulnerability in its chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. Details In the chatcompletion API, the parameters toolids and toolservers are supplied by the user. These...

Open WebUI's chat completion API allows tool restrictions to be bypassed

Summary Open WebUI v0.6.43 contains a vulnerability in its chat completion API, which allows attackers to bypass tool restrictions, potentially enabling unauthorized actions or access. Details In the chatcompletion API, the parameters toolids and toolservers are supplied by the user. These...

Missing Authorization

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Missing Authorization via the chatcompletion API when user-supplied toolids or toolservers parameters are processed without verifying the user's permissions. An attacker can gain unauthorized access to...

GHSA-GFM2-XM6C-37QC Open WebUI has Broken Access Control for Completions API

Summary Any user X can continue the conversation of any other user Y, as long as the Chat ID of Y is known. User X does not even need to be an admin to do so. Details A user just needs to use the API endpoint: /api/chat/completions with their own API key generated in OWUI and the Chat ID of anoth...

Open WebUI has Broken Access Control for Completions API

Summary Any user X can continue the conversation of any other user Y, as long as the Chat ID of Y is known. User X does not even need to be an admin to do so. Details A user just needs to use the API endpoint: /api/chat/completions with their own API key generated in OWUI and the Chat ID of anoth...

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 chatcompletion process. An attacker can access and continue another user's conversation by supplying a known Chat ID in API requests. This is only...

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 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...

CVE-2026-44633

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can...

CVE-2026-44633 Live Helper Chat: REST API chat update accepts arbitrary chat fields across department boundaries

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can...

CVE-2026-44633 Live Helper Chat: REST API chat update accepts arbitrary chat fields across department boundaries

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can...

CVE-2026-44633 Live Helper Chat: REST API chat update accepts arbitrary chat fields across department boundaries

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can...

EUVD-2026-30371

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can...

CVE-2026-44633

Live Helper Chat 4.84v REST API chat update endpoint is vulnerable: a REST user with lhchat/use can update a chat in a department they cannot read, accepting arbitrary chat object fields to alter hash and status and potentially tamper via visitor/widget paths. The same write primitive can set ope...

ThreatsDay Bulletin: PAN-OS RCE, Mythos cURL Bug, AI Tokenizer Attacks, and 10+ Stories

Everything is still on fire. This week feels dumb in the worst way — bad links, weak checks, fake help desks, shady forum posts, and people turning supply chain attacks into some cursed little game for clout and cash. Half of it feels new. Half of it feels like crap we should have fixed years ago...

Rocket.Chat: Autotranslate DDP Method Exposes Private Messages Without Authentication or Room Access Check

Vulnerability description not provided...

PT-2026-51507

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.2 Description Multiple OS command injection issues exist in the Custom MCP Server feature. These occur due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker wi...

Live Helper Chat 安全漏洞

Live Helper Chat is an open-source plugin developed by Live Helper Chat developers, designed to provide chat functionality for web platforms. Version 4.84 of Live Helper Chat contains a security vulnerability. This vulnerability stems from the REST API chat update endpoint, which allows users to...