Ox App Suite
CVE-2023-29051
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.1 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.14%. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system. |
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Alert meAnalysisAIv1 – Mar 28, 2026
User-defined OXMF templates could be used to access a limited part of the internal OX App Suite Java API. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Earlier versions of this analysis (1)
API exposure via OXMF in OX App Suite.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified under CWE-284. User-defined OXMF templates could be used to access a limited part of the internal OX App Suite Java API. The existing switch to disable the feature by default was not effective in this case. Unauthorized users could discover and modify application state, including objects related to other users and contexts. We now make sure that the switch to disable user-generated templates by default works as intended and will remove the feature in future generations of the product. No publicly available exploits are known. Affected products include: Open-Xchange Ox App Suite.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
User-defined OXMF templates could be used to access a limited part of the internal OX App Suite Java API. The existing switch to disable the feature by default was not effective in this case. Unauthorized users could discover and modify application state, including objects related to other users and contexts. We now make sure that the switch to disable user-generated templates by default works as intended and will remove the feature in future generations of the product. No publicly available exploits are known.
Executive ViewAI
CVE-2023-29051 presents notable security risk, a improper access control vulnerability rated CVSS 8.1. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Restrict access to affected endpoints; (2) Implement additional authorization checks; (3) Enable audit logging.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
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OX App Suite through 7.10.6 allows SSRF because multipart/form-data boundaries are predictable, and this can lead to inj
OX App Suite through 7.10.5 allows Directory Traversal via ../ in an OOXML or ODF ZIP archive, because of the mishandlin
OX App Suite through 7.10.6 allows XSS via appHandler in a deep link in an e-mail message. Rated medium severity (CVSS 6
OX App Suite through 7.10.5 allows XSS via JavaScript code in an anchor HTML comment within truncated e-mail, because th
OX App Suite through 7.10.5 allows XSS via the alt attribute of an IMG element in a truncated e-mail message. Rated medi
OX App Suite 7.10.5 allows XSS via an OX Chat system message. Rated medium severity (CVSS 6.1), this vulnerability is re
OX App Suite 7.10.5 allows XSS via an OX Chat room title during typing rendering. Rated medium severity (CVSS 6.1), this
OX App Suite 7.10.5 allows XSS via an OX Chat room name. Rated medium severity (CVSS 6.1), this vulnerability is remotel
OX App Suite through 7.10.5 allows XSS via a crafted snippet in a shared mail signature. Rated medium severity (CVSS 6.1
OX App Suite through 7.10.5 allows XSS via JavaScript code in a shared XCF file. Rated medium severity (CVSS 6.1), this
GitHub PoC
Exploit-DB