Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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 to act on chats in departments they are not assigned to. Operators with the relevant role permissions (holduse, allowblockusers, allowtransfer) can hold, block users from, or transfer chats in departments they are not assigned to. This is a horizontal privilege escalation within one organization. As of time of publication, no known patched versions are available.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
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,… https://www.cve.org/CVERecord?id=CVE-2026-27954
Post summary
The text announces CVE-2026-27954 affecting Live Helper Chat up to version 4.52, noting vulnerable chat action endpoints but providing no exploit, patch, or detailed technical information.
CVE-2026-27954 Horizontal Privilege Escalation in Live Helper Chat Through Unauthorized Chat Actions https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27954
Post summary
The text announces CVE-2026-27954, a horizontal privilege escalation vulnerability in Live Helper Chat, with no PoC, exploit, patch, or active exploitation details provided.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | livehelperchat | live_helper_chat | - | - | - |