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01 Record

CVE-2023-0846

Unauthenticated, stored XSS in display of alarm reduction-key

MediumPUBLISHEDCNA: OpenNMS
CNA base score6.7 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

02 Description

Unauthenticated, stored XSS in display of alarm reduction-key

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.49% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 42.0% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-02-22 18:35Z3 YR AGO
Last updated
2024-08-02 05:24Z2 YR AGO
Reserved
2023-02-15
Assigning CNA
OpenNMS
Record state
PUBLISHED
Severity
Medium (CVSS 6.7)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.1
Document digest
a074a8f4f057d1ab1dda3bdb8a7da5480147b293280c9db56f02d76e29ca7911

05 Affected products

VendorProductVersionsPlatforms
The OpenNMS GroupHorizon26.1.0 to < 31.0.4Windows, Linux, MacOS
The OpenNMS GroupMeridian2020.1.0 to < 2020.1.32, 2021.1.0 to < 2021.1.24, 2022.1.0 to < 2022.1.13Windows, MacOS, Linux

06 References

07 Remediation

https://github.com/OpenNMS/opennms/pull/5506/files Upgrade to a newer version of Meridian or Horizon. Or change the details.jsp file as follows: Change: Reduction Key <% if (alarm.getReductionKey() != null) {%> <%=alarm.getReductionKey()%> <% } else {%> <% }%> To: Reduction Key <% if (alarm.getReductionKey() != null) {%> <%=WebSecurityUtils.sanitizeString(alarm.getReductionKey())%> <% } else {%> <% }%> https://github.com/OpenNMS/opennms/pull/5506/files https://github.com/OpenNMS/opennms/pull/5506/files