CVE-2023-26439: Open-Xchange Appsuite Office

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The cacheservice API could be abused to inject parameters with SQL syntax which was insufficiently sanitized before getting executed as SQL statement. Attackers with access to a local or restricted network were able to perform arbitrary SQL queries, discovering other users cached data. We have improved the input check for API calls and filter for potentially malicious content. No publicly available exploits are known.

Affected products

• Open-Xchange Open-Xchange Appsuite Office: before 8.11 (fixed in 8.11)

Published 2023-08-02. Last modified 2026-06-17.