What’s Vulnerable › Vulnerabilities

CVE-2026-54217: TeamDavid: Stored XSS in web application

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-07 · updated 2026-10-24
• Weakness: CWE-20

Description

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.

Affected products

• Tobit Laboratories AG TeamDavid: before Rollout 528 — fixed in Rollout 528

How to fix

Upgrade to a fixed version: Tobit Laboratories AG TeamDavid Rollout 528. Check the vendor advisory for mitigations.

References

• https://chayns.net/77892-10814/tapp/763210?postId=11454
• https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/
• https://labs.infoguard.ch/posts/22-cves-in-david-a-secure-m365-alternative/

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