CVE-2026-27954

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

n8n has an Authentication Bypass in its Chat Trigger Node

Impact When the Chat Trigger node is configured with n8n User Auth authentication, the authentication check could be circumvented. - This issue requires the Chat Trigger node to be configured with n8n User Auth authentication non-default. Patches The issue has been fixed in n8n versions 2.10.1,...

GHSA-JH8H-6C9Q-7GMW n8n has an Authentication Bypass in its Chat Trigger Node

Impact When the Chat Trigger node is configured with n8n User Auth authentication, the authentication check could be circumvented. - This issue requires the Chat Trigger node to be configured with n8n User Auth authentication non-default. Patches The issue has been fixed in n8n versions 2.10.1,...

Improper Authentication

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Improper Authentication in the Chat Trigger node when configured with n8n User Auth authentication. An attacker can gain unauthorized access by circumventing the authentication check. Note: This is only...

CVE-2026-27153

Discourse (open source discussion platform) is affected prior to versions 2025.12.2, 2026.1.1, and 2026.2.0. The issue arises from an overly permissive allowlist in can_export_entity?, letting moderators export any entity not explicitly blocked via the CSV export endpoint to access user Chat DMs....

CVE-2026-27153 Discourse doesn't prevent moderators from exporting user Chat DMs

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in canexportentity?. The method allowed moderators to export any entity not explicit...

CVE-2026-27153

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in canexportentity?. The method allowed moderators to export any entity not explicit...

CVE-2026-27153 Discourse doesn't prevent moderators from exporting user Chat DMs

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in canexportentity?. The method allowed moderators to export any entity not explicit...

Fake Avast Website Targets Users With €499 Phishing Refund Scam

Fraudsters clone Avast’s website to target French users with a €499 phishing scam, using urgency tactics, live chat, and card validation to steal payment data...

CVE-2026-27954

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

EUVD-2026-8815

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

CVE-2026-27954

Live Helper Chat is affected up to version 4.52. The flaw arises in three chat action endpoints (holdaction.php, blockuser.php, transferchat.php) which load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead(), enabling operators with holduse, allowblockusers, or allowtransfer ...

CVE-2026-27954

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

CVE-2026-27954 LiveHelperChat has department-level authorization bypass in holdaction, blockuser, and transferchat endpoints

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

CVE-2026-27954 LiveHelperChat has department-level authorization bypass in holdaction, blockuser, and transferchat endpoints

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

PT-2026-22103

Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints holdaction.php, blockuser.php, and transferchat.php load chat objects by ID without calling erLhcoreClassChat::hasAccessToRead, allowing operators t...

Live Helper Chat 安全漏洞

Live Helper Chat is an open-source plugin for personal developers that provides chat functionality for web platforms. Versions of Live Helper Chat 4.52 and earlier contain security vulnerabilities. These vulnerabilities stem from the lack of checks for access permissions when loading chat objects...

CVE-2026-27578

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes Form Trigger...

CVE-2026-27578 n8n Vulnerable to Stored XSS via Various Nodes

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes Form Trigger...

CVE-2026-27578

Summary of CVE-2026-27578 (n8n): An authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by n8n across multiple nodes (Form Trigger, Chat Trigger, Send & Wait, Webhook, Chat Node). This leads to client-side script execution in other u...