What is CVE-2023-26456?

CVE-2023-26456 is a medium-severity vulnerability in Open-Xchange Ox Guard, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-02.

How severe is CVE-2023-26456?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Open-Xchange Ox Guard

CVE-2023-26456

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (31.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Open-xchange Ox_guard — versions 2.10.7
Ox Software Gmbh App Suite — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@open-xchange.com (release-notes, Release Notes, Vendor Advisory)
security@open-xchange.com (vendor-advisory)

Frequently asked questions

What is CVE-2023-26456?: CVE-2023-26456 is a medium-severity vulnerability in Open-Xchange Ox Guard, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-02.
How severe is CVE-2023-26456?: Medium severity. CVSS v3 base score is 5.4 out of 10.