TI-2023-11578 Aliases CVE-2023-26430 GHSA-9rfr-rprq-pv78

Command injection in Open-Xchange GmbH OX App Suite

LOW 21CWE-77Published 2023-08-02 · Updated 2024-10-15

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00752 55th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Open-Xchange GmbH	OX App Suite	up to 7.10.6-rev42; up to 8.10	—	No fix listed	CNA

OX App Suite VendorOpen-Xchange GmbH Affected up to 7.10.6-rev42; up to 8.10 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:::::::*	7.10.6	Vulnerable	Open-Xchange GmbH
cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:8.10.0:::::::*	8.10.0	Vulnerable	Open-Xchange GmbH

cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:* Versions 7.10.6 Vulnerable ·Open-Xchange GmbH
cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:8.10.0:*:*:*:*:*:*:* Versions 8.10.0 Vulnerable ·Open-Xchange GmbH

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2023-08-02
OX App Suite — documentation.open-xchange.com/appsuite/security/advisories…
14 records Highest priority Priority MEDIUM 1 MEDIUM, 13 LOW
Other records, highest priority first
- TI-2023-11591 SQL injection in Open-Xchange GmbH OX App SuitePriority MEDIUM 44
- TI-2023-11598 Functions with insufficient randomness were used to generate authorization tokens of the…Priority LOW 35
- TI-2023-11588 SQL injection in Open-Xchange GmbH OX App SuitePriority LOW 34
Show all 14 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2023-26430
2026-10-03 Alias added: GHSA-9rfr-rprq-pv78

References

Advisory 3

Other 1

https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6230_7.10.6_2023-05-02.pdf

TI-2023-11591 SQL injection in Open-Xchange GmbH OX App Suite CVSS 3.1CRITICAL 9.8
TI-2023-11584 Code injection in Open-Xchange GmbH OX App Suite CVSS 3.1HIGH 8.8
TI-2023-11598 Functions with insufficient randomness were used to generate authorization tokens of the… CVSS 3.1HIGH 7.5
TI-2023-11576 Authorization bypass in Open-Xchange GmbH OX App Suite CVSS 3.1MEDIUM 6.5
TI-2016-05883 Cross-site scripting (XSS) vulnerability in Open-Xchange (OX) AppSuite backend before… CVSS 3.0MEDIUM 6.1
TI-2023-11577 Command injection in Open-Xchange GmbH OX App Suite CVSS 3.1MEDIUM 5.3

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences