🛡️ CVE-2023-26436
🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-94 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Attackers with access to the "documentconverterws" API were able to inject serialized Java objects, that were not properly checked during deserialization. Access to this API endpoint is restricted to local networks by default. Arbitrary code could be injected that is being executed when processing the request. A check has been introduced to restrict processing of legal and expected classes for this API. We now log a warning in case there are attempts to inject illegal classes. No publicly available exploits are known.

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-94
Public Exploit ✅ No
Source NVD
Published 2023-06-20
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
open-xchange-appsuite-backend — —

References

Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Jun/8

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