LiveHelperChat 4.61 · Stored Cross Site Scripting (XSS) via Operator Surname

Impact

For European organizations using LiveHelperChat 4.61, this stored XSS vulnerability poses a significant risk to the integrity and security of their customer support operations. Exploitation could lead to session hijacking of chat operators or administrators, enabling attackers to impersonate legitimate users, access sensitive customer interactions, or manipulate chat content. This could result in data leakage of personal information exchanged during chats, undermining GDPR compliance and exposing organizations to regulatory penalties. Additionally, attackers could use the vulnerability as a foothold to conduct further attacks within the internal network or deliver malware payloads to operator workstations. The reputational damage from compromised customer support channels could be substantial, especially for sectors like finance, healthcare, and e-commerce where trust is paramount. Since LiveHelperChat is web-based and often integrated into customer-facing portals, the attack surface is broad, potentially affecting any user who interacts with the chat system. The lack of known exploits in the wild currently reduces immediate risk, but the availability of exploit code lowers the barrier for attackers to weaponize this vulnerability.