TeamDavid: Server-Side Request Forgery (SSRF) via 'pathname' parameter in link storing functionality

Tobit Laboratories AG TeamDavid's Webbox 's link storing functionality (//ServerClient_celink.htm)
accepts a “pathname” parameter, which can be set to network locations
using UNC paths (e.g., “\\Server\Share”). The server processes these
paths without validation, resulting in outbound connection attempts to
attacker-controlled SMB servers. This enables authenticated attackers to
trigger the server to authenticate to arbitrary SMB endpoints,
potentially exposing NTLM authentication information (such as NTLM
hashes). If outbound connections to port 445 (SMB) are permitted,
attackers can use this to conduct SMB relay or credential theft attacks.
Exploitation of the “pathname” parameter is possible without
authentication. This issue affects TeamDavid before Rollout 528.

Starting with Rollout 528 (June 30, 2026), the affected functionality is disabled by default and the vulnerabilities are therefore no longer exposed through this functionality.