CVE-2023-26430
Attackers with access to user accounts can inject arbitrary control characters to SIEVE mail-filter rules. This could be
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.
LOW · CVSS 3.5
EPSS 0.00078
Schedule remediation
- Public exploit or PoC is available
Sigma rules0
YARA rules0