CVE-2023-26456 Cross-site scripting in OX App Suite

Medium 5.4 Published 2 Nov 2023 Updated 3 Dec 2024

Insufficient sanitization of product names in OX App Suite allows attackers to execute persistent code and take over accounts via cross-site scripting.

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-2023-26456?

CVE-2023-26456 is a medium-severity cross-site scripting vulnerability in OX App Suite, published on 2 Nov 2023. 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 set an arbitrary "product name" for OX Guard. The chosen value was not sufficiently sanitized before processing it at the user interface, allowing for indirect cross-site scripting attacks. Accounts that were temporarily taken over could be configured to trigger persistent code execution, allowing an attacker to build a foothold. Sanitization is in place for product names now. No publicly available exploits are known.

Weakness: CWE-79

Which versions are affected by CVE-2023-26456?

It affects 1 product.

Products include Open-Xchange Ox Guard.

How do I fix CVE-2023-26456?

No fix has been published for CVE-2023-26456 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-2023-26456 being exploited?

There is no known exploitation of CVE-2023-26456 in the wild and no public exploit code.

Sources

Also known as GHSA-xmj4-pwxq-wq63.