LiveHelperChat 4.61 · Stored Cross Site Scripting (XSS) via the Chat Transfer Function

Impact

For European organizations, the impact of this stored XSS vulnerability can be substantial, especially for those relying on LiveHelperChat for customer engagement and support. Exploitation could lead to unauthorized access to sensitive customer data, including personal information protected under GDPR, resulting in regulatory penalties and reputational damage. Attackers could leverage the vulnerability to hijack user sessions, impersonate legitimate users, or inject malicious content that compromises the integrity of communications. This can erode customer trust and disrupt business operations. Additionally, if attackers use the vulnerability to distribute malware or phishing content, it could lead to broader security incidents affecting both the organization and its customers. The persistent nature of stored XSS increases the risk as malicious scripts remain active until the vulnerability is remediated. Given the widespread use of web-based chat support tools in sectors such as e-commerce, finance, and public services across Europe, the threat poses a tangible risk to data confidentiality, integrity, and availability.