What is CVE-2023-40311?

CVE-2023-40311 is a medium-severity vulnerability in Opennms Horizon, classified under Cross-site Scripting. CVSS score: 6.7/10. Published 2023-08-14.

How severe is CVE-2023-40311?

Medium severity. CVSS v3 base score is 6.7 out of 10.

XSS in Opennms Horizon

CVE-2023-40311

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (47.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Opennms Horizon
Opennms Meridian
The Opennms Group Horizon — versions 31.0.8, 0
The Opennms Group Meridian — versions 2020.0.0, 2021.0.0, 2022.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@opennms.com (Product)
security@opennms.com (Patch, Vendor Advisory)
security@opennms.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-40311?: CVE-2023-40311 is a medium-severity vulnerability in Opennms Horizon, classified under Cross-site Scripting. CVSS score: 6.7/10. Published 2023-08-14.
How severe is CVE-2023-40311?: Medium severity. CVSS v3 base score is 6.7 out of 10.