CVE-2026-54217
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
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.
Risk Assessment
An attacker may steal session data, take over a user's account, or perform unauthorized actions in the context of the logged-in user. This could lead to confidentiality and integrity breaches.
Recommendation
Update TeamDavid to Rollout 528 or later, where the functionality is disabled by default. Also implement input filtering and sanitization in the application.
Other vulnerabilities in TeamDavid
See all- 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-2026-54205Medium
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.
- 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 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. 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