CVE-2026-54216 TeamDavid: Reflected Cross Site Scripting (XSS) via the 'EntryInfo' parameter
Attackers can execute arbitrary scripts in victims' browsers via a crafted link in TeamDavid Webbox, mitigated by disabling the feature in newer rollouts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-54216?
CVE-2026-54216 is a medium-severity cross-site scripting vulnerability in Tobit Laboratories AG TeamDavid, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Tobit Laboratories AG TeamDavid's Webbox application contains a reflected cross-site scripting (XSS) vulnerability. By sending a specially crafted link including an arbitrary path, an XSS payload or the parameter “EntryInfo”, and the parameter “!templateName=entryMail”, an attacker can cause the payload to execute in the victim’s browser when they click the link. 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-54216?
How do I fix CVE-2026-54216?
No fix has been published for CVE-2026-54216 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-54216 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54216 exists.
Sources
Also known as GHSA-7rcg-qcqc-wfpx.