CVE-2026-54215 in TeamDavid
Summary
by MITRE • 08/07/2026
Tobit Laboratories AG TeamDavid's Webbox contains an open redirect vulnerability via the “replyUrl” parameter. An attacker can exploit this vulnerability to craft a URL within the application that, when visited, 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. This issue affects TeamDavid through Rollout 524.
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Analysis
by VulDB Data Team • 08/07/2026
The vulnerability in Tobit Laboratories AG TeamDavid's Webbox represents a critical open redirect flaw that exploits the "replyUrl" parameter within the application's web interface. This type of vulnerability falls under CWE-601, which specifically addresses URL redirection and forwarding mechanisms that fail to validate or sanitize user-provided input before directing users to external domains. The flaw exists in the application's handling of redirect parameters, allowing malicious actors to manipulate the redirection flow by injecting arbitrary URLs into the replyUrl parameter. This vulnerability affects all versions of TeamDavid through Rollout 524, indicating a widespread issue that has persisted across multiple iterations of the software.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the Webbox application's redirect functionality. When users interact with the application and provide a replyUrl parameter, the system fails to properly verify whether the target URL originates from an authorized domain or contains malicious redirection attempts. This lack of proper validation creates an attack surface where attackers can craft deceptive URLs that appear legitimate but ultimately redirect users to phishing sites or other malicious destinations. The vulnerability operates at the application layer and requires no authentication or privileged access to exploit, making it particularly dangerous for widespread abuse.
The operational impact of this vulnerability extends beyond simple redirection attacks and creates significant security risks for organizations using TeamDavid's Webbox platform. Attackers can leverage this flaw to conduct sophisticated phishing campaigns where users receive seemingly legitimate links from trusted domains but are silently redirected to credential harvesting sites. This type of attack follows the ATT&CK technique T1566.001, which describes the use of spearphishing with links, where the malicious redirect serves as the delivery mechanism for social engineering attacks. The vulnerability enables attackers to bypass security measures that might otherwise detect suspicious email content, as the initial link appears to come from a legitimate source within the organization's trusted domain.
Organizations facing this vulnerability should implement immediate mitigations including input validation and sanitization of all redirect parameters, implementing a whitelist approach for allowed redirect domains, and conducting thorough code reviews to identify similar patterns throughout the application. The recommended approach aligns with security best practices outlined in OWASP Top Ten and NIST guidelines for web application security. Additionally, organizations should consider implementing proper URL encoding validation, using canonical URLs for all redirects, and establishing monitoring mechanisms to detect unusual redirect patterns that might indicate exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify potential variants of this vulnerability across the entire application ecosystem, ensuring comprehensive protection against similar redirect-based attacks that could compromise user security and organizational integrity.