GHSA-VRHC-3FR6-PC3C Open WebUI: Forged chat-file link allows cross-user file read and deletion

Summary Open WebUI v0.9.5 lets an authenticated user attach arbitrary fileid values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, hasaccesstofile treats the victim file as accessible...

Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

summary POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the global file table with no ownership check. An authenticated user can therefore set imageurl.url to another...

GHSA-WCH8-MHJ5-9FRG Open WebUI: Cross-user file disclosure via /api/chat/completions image_url field

summary POST /api/chat/completions accepts an imageurl.url value that, when it does NOT start with http://, https://, or data:image/, is interpreted as a file id and resolved against the global file table with no ownership check. An authenticated user can therefore set imageurl.url to another...

GHSA-3VV5-8XXP-4F55 Open WebUI: Cross-origin postMessage confirmation bypass via action:submit

Summary The chat message listener allows non-same-origin input:prompt and action:submit messages, so an external site can set prompt text and trigger submitPrompt in an authenticated victim session. I validated this with a cross-origin attacker page that auto-posted messages and caused unauthoriz...

Open WebUI: Cross-origin postMessage confirmation bypass via action:submit

Summary The chat message listener allows non-same-origin input:prompt and action:submit messages, so an external site can set prompt text and trigger submitPrompt in an authenticated victim session. I validated this with a cross-origin attacker page that auto-posted messages and caused unauthoriz...

CVE-2026-52698

Subscriber Sensitive Data Exposure in PushEngage – Web Push Notifications, eCommerce Automation & Chat Widget = 4.2.3 versions...

CVE-2026-48616

Rocket.Chat versions 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, 7.10.13 has an access control vulnerability in Livechat files. Protected file downloads at /file-upload/:fileId/:name authorize livechat access using rcroomtype=l with rcrid+rctoken, but the authorization path does not verify...

CVE-2026-52698

The CVE concerns the WordPress PushEngage plugin (versions

PT-2026-50479

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.6 Description The chat message listener in the chat page's window message listener processes input:prompt and action:submit messages without enforcing same-origin restrictions. This allows an external site to s...

PT-2026-50482

Name of the Vulnerable Software and Affected Versions Open WebUI versions prior to 0.9.6 Description An authenticated user can attach arbitrary file id values to their own chat messages because the system fails to verify if the user owns or has read access to those files. By sharing the chat and...

CVE-2026-48929

Rocket.Chat in versions 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, and 7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket...

CVE-2026-48616

CVE-2026-48616 affects Rocket.Chat Livechat file downloads in multiple legacy branches (versions

CVE-2026-48929

Rocket.Chat versions older than 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, and 7.10.13 are vulnerable to unauthenticated file deletion through the deleteFileMessage Meteor method. When called over an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, bypassing the auth...

CVE-2026-48616

Rocket.Chat versions 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, 7.10.13 has an access control vulnerability in Livechat files. Protected file downloads at /file-upload/:fileId/:name authorize livechat access using rcroomtype=l with rcrid+rctoken, but the authorization path does not verify...

NPM: n8n: Stored XSS in Chat Trigger Node

NPM: n8n: Stored XSS in Chat Trigger Node vulnerability discovered by ? in WordPress Npm n8n versions 1.123.55...

n8n: Stored XSS in Chat Trigger Node

Impact An authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the injected code executed in the n8n origin with that user's session privileges. Patches T...

GHSA-42H7-M79W-WVG5 n8n: Stored XSS in Chat Trigger Node

Impact An authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious webhookId. When a logged-in user visited the chat URL, the injected code executed in the n8n origin with that user's session privileges. Patches T...

BIT-DISCOURSE-2026-45085 Discourse: Chat misauthorization and information disclosure

Discourse is an open-source discussion platform. From versions 2026.1.0 to before 2026.1.4, 2026.3.0 to before 2026.3.1, and 2026.4.0 to before 2026.4.1, four authorization/disclosure issues in the chat plugin one also involving discourse-calendar: read-only category users could create chat...

BIT-DISCOURSE-2026-44786 Discourse: Public chat MessageBus broadcasts are not restricted to chat-eligible users

Discourse is an open-source discussion platform. From versions 2026.1.0 to before 2026.1.4, 2026.3.0 to before 2026.3.1, and 2026.4.0 to before 2026.4.1, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus subscriber without chat...

PT-2026-50131

Name of the Vulnerable Software and Affected Versions Rocket.Chat versions prior to 8.5.1 Rocket.Chat versions prior to 8.4.4 Rocket.Chat versions prior to 8.3.6 Rocket.Chat versions prior to 8.2.6 Rocket.Chat versions prior to 8.1.6 Rocket.Chat versions prior to 8.0.7 Rocket.Chat versions prior ...