CVEvulnerability

CVE-2023-26430

4.3 MEDIUM Published 2023-08-02 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-08-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.5 LOW — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses
CWE-77

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 configurations

• open-xchange open-xchange appsuite backend 7.10.6 • open-xchange open-xchange appsuite backend 8.10.0

Related

Weakness · CWE (1)

  • CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References