Server-side request forgery in Open-Xchange GmbH OX App Suite
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
It was possible to call filesystem and network references using the local LibreOffice instance using manipulated ODT documents. Attackers could discover restricted network topology and services as well as including local files with read permissions of the open-xchange system user. This was limited to specific file-types, like images. We have improved existing content filters and validators to avoid including any local resources. No publicly available exploits are known.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Open-Xchange GmbH | OX App Suite | up to 7.10.6-rev7 | — | No fix listed | CNA |
- OX App Suite VendorOpen-Xchange GmbH Affected up to 7.10.6-rev7 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:* | before 7.10.6 | Vulnerable | Open-Xchange GmbH |
| 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:7.10.6:revision_39:*:*:*:*:*:* | 7.10.6 revision_39 | Vulnerable | Open-Xchange GmbH |
- cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:* Versions before 7.10.6 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:7.10.6:revision_39:*:*:*:*:*:* Versions 7.10.6 revision_39 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 ·
OX App Suite — documentation.open-xchange.com/appsuite/security/advisories…
9 records Highest priority Priority MEDIUM 1 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2023-11584 Code injection in Open-Xchange GmbH OX App SuitePriority MEDIUM 41
- TI-2023-11576 Authorization bypass in Open-Xchange GmbH OX App SuitePriority LOW 31
- TI-2023-11577 Command injection in Open-Xchange GmbH OX App SuitePriority LOW 25
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26435
- 2026-10-03 Alias added: GHSA-qg93-cpf3-386g
References
Advisory 3
More Open-Xchange GmbH Open-xchange Appsuite Backend vulnerabilities
- 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
Sources
- CVE-2023-26435 · CVE Program
- CVE-2023-26435 · NVD
- FIRST EPSS
- GHSA-qg93-cpf3-386g · GitHub Advisory Database · CC BY 4.0
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