CVE-2023-26430
Low
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.
SeverityLow
CVSS3.5
Exploit probability—
ProductOpen-xchange Appsuite Backend
PublishedAug 2, 2023
First seenAug 2, 2023
Weakness typeCWE-77Command injection
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| open-xchange open-xchange_appsuite_backend | 7.10.6, 8.10.0 | — |
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