CVE-2023-40311

Name: CVE-2023-40311
Creator: NVD / NIST
Published: 2023-08-14T18:15:11.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.65%

Last modified Jun 17, 2026

CVE-2023-40311 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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. EPSS estimates a 0.65% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.8/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.65%

46.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Opennms	Horizon	>= 31.0.8, < 32.0.2
Opennms	Meridian	< 2020.1.38
Opennms	Meridian	>= 2022.1.0, < 2022.1.19
Opennms	Meridian	>= 2023.1.0, < 2023.1.6

References

https://github.com/OpenNMS/opennmsProduct
https://github.com/OpenNMS/opennms/pull/6365Patch, Vendor Advisory
https://github.com/OpenNMS/opennms/pull/6366Patch, Vendor Advisory
https://github.com/OpenNMS/opennmsProduct
https://github.com/OpenNMS/opennms/pull/6365Patch, Vendor Advisory
https://github.com/OpenNMS/opennms/pull/6366Patch, Vendor Advisory

Timeline

Published: Aug 14, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40311?

How severe is CVE-2023-40311?

CVE-2023-40311 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40311?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-40311?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST