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CVE-2023-26430

nvd nist
Published: Aug 2, 2023Modified: Jun 17, 2026

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4.3
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Exploitability: 2.8 / Impact: 1.4
Source: NVD

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.

Affected (2)

Open Xchange
1 product
Open Xchange Appsuite Backend
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Open Xchange
Open Xchange Appsuite Backend
Version 7.10.6
Open Xchange Appsuite Backend
Version 8.10.0

Related CWEs

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

References (8)

Source: security@open-xchange.com
Third Party AdvisoryVDB Entry
Source: security@open-xchange.com
Mailing ListThird Party Advisory
Source: security@open-xchange.com
Source: security@open-xchange.com
Release Notes
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes

Timeline

No history available yet.