CVE-2026-54205
MediumCVSS 6.3Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
The link storing functionality in TeamDavid Webbox accepts a 'pathname' parameter with UNC paths, allowing authenticated attackers to trigger outbound connections to attacker-controlled SMB servers. This can expose NTLM authentication information (such as NTLM hashes) and enable SMB relay or credential theft attacks. Exploitation is possible without authentication.
Risk Assessment
The organization is at risk of NTLM credential leakage, potentially enabling account takeover or privilege escalation. SMB relay attacks could lead to unauthorized access to systems.
Recommendation
Update TeamDavid to Rollout 528 or later, where the functionality is disabled by default. Additionally, restrict outbound connections on port 445 (SMB) from the server.
Other vulnerabilities in TeamDavid
See all- CVE-2026-54217Medium
The TeamDavid Webbox application is vulnerable to a stored XSS vulnerability. An attacker can send an email containing malicious JavaScript code. When a user accesses the email, the stored cross-site scripting is triggered.
- CVE-2026-54215Medium
TeamDavid Webbox contains an open redirect vulnerability via the 'replyUrl' parameter. An attacker can craft a URL within the application that redirects the user's browser to an arbitrary third-party site. This can be abused for phishing attacks, where users receive a trusted domain link but are redirected to a phishing website.
- CVE-2026-54199Medium
TeamDavid Webbox is vulnerable to HTTP header injection through the request body in the link storing functionality (//ServerClient_celink.htm), which is appended to the redirect target in the 302 HTTP response. Adding a line feed allows control over response headers.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS