CVE-2023-26448 Cross-site scripting in OX App Suite

Medium 5.4 Published Updated

Attackers can execute malicious scripts via unsanitized custom login/logout locations, leading to session hijacking or unwanted actions.

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-2023-26448?

CVE-2023-26448 is a medium-severity cross-site scripting vulnerability in OX App Suite, published on 2 Aug 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

Custom log-in and log-out locations are used-defined as jslob but were not checked to contain malicious protocol handlers. Malicious script code can be executed within the victims context. This can lead to session hijacking or triggering unwanted actions via the web interface and API. To exploit this an attacker would require temporary access to the users account or lure a user to a compromised account. We now sanitize jslob content for those locations to avoid redirects to malicious content. No publicly available exploits are known.

Weakness: CWE-79

Which versions are affected by CVE-2023-26448?

It affects 1 product.

Products include Open-Xchange Open-Xchange Appsuite Frontend.

How do I fix CVE-2023-26448?

No fix has been published for CVE-2023-26448 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-2023-26448 being exploited?

There is no known exploitation of CVE-2023-26448 in the wild and no public exploit code.

Sources

Also known as GHSA-prhg-xpp4-c8mx.

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