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CVE-2023-29051

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-08 · updated 2026-06-17
• Weakness: CWE-284

Description

User-defined OXMF templates could be used to access a limited part of the internal OX App Suite Java API. The existing switch to disable the feature by default was not effective in this case. Unauthorized users could discover and modify application state, including objects related to other users and contexts. We now make sure that the switch to disable user-generated templates by default works as intended and will remove the feature in future generations of the product. No publicly available exploits are known.

Affected products

• Open-Xchange GmbH OX App Suite: before 7.10.6; 7.10.6, 7.10.6-rev01, 7.10.6-rev02, 7.10.6-rev03, 7.10.6-rev04, 7.10.6-rev05 (+34) — fixed in 7.10.6

How to fix

Upgrade to a fixed version: Open-Xchange GmbH OX App Suite 7.10.6. Check the vendor advisory for mitigations.

References

• https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0006.json
• https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6251_7.10.6_2023-09-25.pdf
• http://seclists.org/fulldisclosure/2024/Jan/4
• https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0006.json
• https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6251_7.10.6_2023-09-25.pdf

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