CVE-2023-29052 Cross-site scripting in OX App Suite

Medium 5.4 Published 8 Jan 2024 Updated 4 Nov 2025

Attackers can inject malicious scripts into disclaimer texts, leading to code execution in the victim's browser context.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-29052?

CVE-2023-29052 is a medium-severity cross-site scripting vulnerability in Open-Xchange GmbH OX App Suite, published on 8 Jan 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Users were able to define disclaimer texts for an upsell shop dialog that would contain script code that was not sanitized correctly. Attackers could lure victims to user accounts with malicious script code and make them execute it in the context of a trusted domain. We added sanitization for this content. No publicly available exploits are known.

Weakness: CWE-79

Which versions are affected by CVE-2023-29052?

It affects 1 product.

Products include Open-Xchange Ox App Suite.

How do I fix CVE-2023-29052?

No fix has been published for CVE-2023-29052 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-2023-29052 being exploited?

There is no known exploitation of CVE-2023-29052 in the wild and no public exploit code.

Sources

Also known as GHSA-xr84-qwr9-vj33.