CVE-2023-26428
6.5 · MEDIUMOverview
CVE-2023-26428 is a medium-severity vulnerability affecting open-xchange open-xchange_appsuite_backend. It was published on June 20, 2023 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Attackers can successfully request arbitrary snippet IDs, including E-Mail signatures of other users within the same context. Signatures of other users could be read even though they are not explicitly shared. We improved permission handling when requesting snippets that are not explicitly shared with other users. No publicly available exploits are known.
Remediation
Check the references section for vendor advisories and patches from open-xchange. Update open-xchange_appsuite_backend to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| open-xchange | open-xchange_appsuite_backend | >= 0, < 7.10.6 | Affected |
References
Frequently Asked Questions
What is CVE-2023-26428?
CVE-2023-26428 is a medium-severity vulnerability affecting open-xchange open-xchange_appsuite_backend. It was published on June 20, 2023 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2023-26428?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-26428?
Check the references section for vendor advisories and patches from open-xchange. Update open-xchange_appsuite_backend to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-26428?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-26428 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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