CVE-2026-54213 Details
Description
Tobit Laboratories AG TeamDavid's Webbox application exposes a functionality that allows the server to be shut down when a specific endpoint (/internalRestart) is accessed. This endpoint is accessible to unauthenticated users over the public Internet. Instead of “restarting”, the server shuts completely down. As a result, a remote attacker can trigger a persistent denial of service by shutting down the web server without requiring authentication. Recovery requires manual administrator intervention to restart the service. 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.
A denial-of-service vulnerability has been identified in Tobit Laboratories TeamDavid's Webbox application, specifically in versions through Rollout 524. The issue arises from an endpoint (/internalRestart) that, when accessed by unauthenticated users over the public Internet, shuts down the web server completely instead of restarting it. This unauthorized action requires manual intervention by an administrator to restore the service, leading to a persistent disruption.
Users are advised to update to the latest version of TeamDavid, as the current version's vulnerabilities seem to be fixed. For those unable to update, consider placing the application behind a VPN or a reverse proxy that filters requests and blocks access to non-essential endpoints, such as /internalRestart.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 7, 2026CISA-ADP
Assessed Aug 7, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/ | CISA-ADP | BundleExploitRemedyTechnical Analysis |
| https://chayns.net/77892-10814/tapp/763210?postId=11454 | [email protected] | |
| https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/ | [email protected] | BundleExploitRemedyTechnical Analysis |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Tobit Laboratories AG TeamDavid | <= 524 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 7, 2026 | CVE Modified | [email protected] |
| Sep 7, 2026 | CVE Modified | CISA-ADP |
| Aug 7, 2026 | CVE Modified | CISA-ADP |
| Aug 7, 2026 | New CVE Received | [email protected] |