🛡️ CVE-2023-26430
🟢 CVSS 3.5 — Low ✅ No Known Exploit CWE-77 NVD
3.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Attackers with access to user accounts can inject arbitrary control characters to SIEVE mail-filter rules. This could be abused to access SIEVE extension that are not allowed by App Suite or to inject rules which would break per-user filter processing, requiring manual cleanup of such rules. We have added sanitization to all mail-filter APIs to avoid forwardning control characters to subsystems. No publicly available exploits are known.

Details

Severity LOW
CVSS Score 3.5
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N
CWE CWE-77
Public Exploit ✅ No
Source NVD
Published 2023-08-02
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/Aug/8
Mailing List, Third Party Advisory http://seclists.org/fulldisclosure/2023/Aug/8

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