CVE-2023-40311
6.7 · MEDIUMOverview
CVE-2023-40311 is a medium-severity vulnerability affecting opennms horizon. It was published on August 14, 2023 and has a CVSS 3.1 base score of 6.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Multiple stored XSS were found on different JSP files with unsanitized parameters in OpenMNS Horizon 31.0.8 and versions earlier than 32.0.2 on multiple platforms that allow an attacker to store on database and then load on JSPs or Angular templates. The solution is to upgrade to Meridian 2023.1.6, 2022.1.19, 2021.1.30, 2020.1.38 or Horizon 32.0.2 or newer. Meridian and Horizon installation instructions state that they are intended for installation within an organization's private networks and should not be directly accessible from the Internet. OpenNMS thanks Jordi Miralles Comins for reporting this issue.
Remediation
Check the references section for vendor advisories and patches from opennms. Update horizon 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 |
|---|---|---|---|
| opennms | horizon | >= 31.0.8, < 32.0.2 | Affected |
| opennms | meridian | >= 0, < 2020.1.38 | Affected |
Frequently Asked Questions
What is CVE-2023-40311?
CVE-2023-40311 is a medium-severity vulnerability affecting opennms horizon. It was published on August 14, 2023 and has a CVSS 3.1 base score of 6.7 (MEDIUM).
How severe is CVE-2023-40311?
This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-40311?
Check the references section for vendor advisories and patches from opennms. Update horizon 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-2023-40311?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-40311 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
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