CVE-2025-0930 Reflected Cross-Site Scripting (XSS) vulnerability in TeamCal Neo

Medium 6.1 Published Updated

An attacker can execute malicious JavaScript in TeamCal Neo via the abs parameter, potentially compromising user sessions.

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-2025-0930?

CVE-2025-0930 is a medium-severity cross-site scripting vulnerability in Lewe TeamCal Neo, published on 31 Jan 2025. 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

Reflected Cross-Site Scripting (XSS) in TeamCal Neo, version 3.8.2. This allows an attacker to execute malicious JavaScript code, after injecting code via the ‘abs’ parameter in ‘/teamcal/src/index.php’.

Weakness: CWE-79

Which versions are affected by CVE-2025-0930?

How do I fix CVE-2025-0930?

No fix has been published for CVE-2025-0930 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-2025-0930 being exploited?

There is no known exploitation of CVE-2025-0930 in the wild and no public exploit code.

Sources

Also known as GHSA-7q7g-fjp6-g4rg.

Is CVE-2025-0930 in your software?

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