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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (29.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Open-Xchange Ox Guard — versions 2.10.7
- Ox Software Gmbh App Suite — versions 0
Weakness classification (CWE)
References
- software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release… (release-notes, Release Notes, Vendor Advisory)
- documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-… (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.