Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions

SummaryThe chat-completions endpoint reads a folder id out of the request body and saves the newly created chat into that folder without checking that the caller is allowed to write there. Any authenticated user who knows a folder's id can put a chat of their own into another user's folder,...

EUVD-2026-75181

Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions...

CVE-2026-87997 Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/chat/completions and POST /api/v1/chat/completions in backend/openwebui/main.py copied a client-supplied folderid into a new chat without applying the folder write-access chec...

CVE-2026-87997

Open WebUI (self-hosted AI platform) versions 0.10.0 through 0.11.1 contain an access-control bypass in POST /api/chat/completions and POST /api/v1/chat/completions (backend/open_webui/main.py). A client-supplied folder_id was copied into a new chat without the folder write-access check enforced ...

CVE-2026-87997 Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/chat/completions and POST /api/v1/chat/completions in backend/openwebui/main.py copied a client-supplied folderid into a new chat without applying the folder write-access chec...

PT-2026-89174

Name of the Vulnerable Software and Affected Versions Open WebUI versions 0.10.0 through 0.11.0 Description An issue exists in the chat-completions handler within backend/open webui/main.py where the system fails to verify if a user has write access to a specified folder when creating a new chat...

OESA-2026-3093 thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes du...

CVE-2026-57963 Chat UI manipulation by injection

An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1...

Mozilla Thunderbird < 152.0.1

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 152.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-63 advisory. - An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content,...

Mozilla Thunderbird < 152.0.1

The version of Thunderbird installed on the remote Windows host is prior to 152.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-63 advisory. - An attacker who can send HTML chat messages via Matrix or XMPP can inject arbitrary styled content, phishing...

Security Vulnerabilities fixed in Thunderbird 140.12.1 — Mozilla

A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes due to memory exhaustion. An attacker who can send HTML chat messages via Matrix ...

Linux Distros Unpatched Vulnerability : CVE-2024-28593

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Chat activity in Moodle 4.3.3 allows students to insert a potentially unwanted HTML A element or IMG element, or HTML content that leads to a performance...

CVE-2025-0747

CVE-2025-0747 concerns a stored cross-site scripting vulnerability in EmbedAI. According to the sources, an authenticated attacker can inject malicious JavaScript into a chat message, which is executed when a user opens the chat. Documents from NVD/CVE lists describe the vulnerability and impact ...