CVE-2025-30191 Cross-site scripting in OX App Suite
Attackers can use malicious email content to perform redressing attacks, tricking users into unintended actions or data disclosure.
- 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-2025-30191?
CVE-2025-30191 is a medium-severity cross-site scripting vulnerability in Open-Xchange GmbH OX App Suite, published on 31 Oct 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
Malicious content from E-Mail can be used to perform a redressing attack. Users can be tricked to perform unintended actions or provide sensitive information to a third party which would enable further threats. Attribute values containing HTML fragments are now denied by the sanitization procedure. No publicly available exploits are known
Weakness: CWE-1021
Which versions are affected by CVE-2025-30191?
How do I fix CVE-2025-30191?
No fix has been published for CVE-2025-30191 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-2025-30191 being exploited?
There is no known exploitation of CVE-2025-30191 in the wild and no public exploit code.
Sources
Also known as GHSA-7p8g-rr59-8pqg.