CVE-2026-54217 TeamDavid: Stored XSS in web application
Attackers can inject malicious JavaScript via email, triggering stored XSS when users view the message, potentially leading to session hijacking or code execution.
- 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-2026-54217?
CVE-2026-54217 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 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.
Weakness: CWE-20
Which versions are affected by CVE-2026-54217?
How do I fix CVE-2026-54217?
No fix has been published for CVE-2026-54217 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-2026-54217 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54217 exists.
Sources
Also known as GHSA-j27m-9gf8-vm7r.