XSS exists in the wp-live-chat-support v8.0.15 plugin for WordPress via the modules/gdpr.php term parameter in a wp-admin/admin.php wplivechat-menu-gdpr-page request.
The Web server in 3CX version 15.5.8801.3 is vulnerable to Information Leakage, because of improper error handling in Stack traces, as demonstrated by discovering a full pathname.
The WP Live Chat Support Pro plugin before 8.0.07 for WordPress is vulnerable to unauthenticated Remote Code Execution due to client-side validation of allowed file types, as demonstrated by a v1/remote_upload request with a .php filename and the image/jpeg content type.
There is stored cross site scripting in the wp-live-chat-support plugin before 8.0.08 for WordPress via the "name" (aka wplc_name) and "email" (aka wplc_email) input fields to wp-json/wp_live_chat_support/v1/start_chat whenever a malicious attacker would initiate a new chat with an administrator. NOTE: this issue exists because of an incomplete fix for CVE-2018-9864.
On 3CX 15.5.6354.2 devices, the parameter "file" in the request "/api/RecordingList/download?file=" allows full access to files on the server via path traversal.
In the 3CX Phone System 15.5.3554.1, the Management Console typically listens to port 5001 and is prone to a directory traversal attack: "/api/RecordingList/DownloadRecord?file=" and "/api/SupportInfo?file=" are the vulnerable parameters. An attacker must be authenticated to exploit this issue to access sensitive information to aid in subsequent attacks.
Cross-site scripting vulnerability in WP Live Chat Support prior to version 7.0.07 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.