CVE-2023-26439

CVE-2023-26439 is a high-severity vulnerability in Open-xchange Open-xchange Appsuite Office with a CVSS 3.x base score of 7.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Description

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.

Frequently asked questions

What is CVE-2023-26439?
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.
How severe is CVE-2023-26439?
CVE-2023-26439 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26439 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26439?
CVE-2023-26439 affects Open-xchange Open-xchange Appsuite Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26439?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26439 published?
CVE-2023-26439 was published on 2023-08-02 and last updated on 2026-06-17.

References

Affected products (1)

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