HO
Product
Horizon
by The OpenNMS Group · last CVE Oct 15, 2026
23
CVEs
0
On KEV
9.1
Max CVSS
2
New 30D
Severity mix
Critical 1High 5Medium 17Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-53122
6.9
0%
Jun 26
SQLi in OpenNMS Horizon and Meridian
Affected: 25.2.1 before 33.1.6, 33.1.7; 33.0.8 before 33.1.6, 33.1.7
CVE-2025-53121
6.9
0%
Jun 26
Stored XSS in multiple 33.0.8files in opennms/opennms
Affected: 33.0.8 before 33.1.6, 33.1.7
CVE-2023-0870
6.7
0%
Mar 22
Form Can Be Manipulated with Cross-Site Request Forgery (CSRF)
Affected: All versions, or not specified
CVE-2026-111252
6.5
0%
Oct 15
OpenNMS denial of service via XML entity expansion
Affected: 36.0.0 before 36.0.5
CVE-2026-89089
6.5
0%
Sep 10
OpenNMS SQL injection in shipped Asset Management JasperReports via the DATE_FORMAT parameter (ROLE_USER)
Affected: 36.0.0 before 36.0.4
CVE-2023-0815
6.5
1%
Feb 23
Plaintext Password Present in the Web logs
Affected: 26.0.0 before 31.0.4
CVE-2023-40314
6.1
0%
Nov 16
Cross-site scripting in bootstrap.jsp
Affected: 31.0.8 before 32.0.4
CVE-2023-0871
6.1
1%
Aug 11
An XML External Entity injection vulnerability
Affected: 31.0.8 before 32.0.2
CVE-2023-0867
6.1
0%
Feb 23
Multiple stored and reflected Cross-site Scripting in webapp
Affected: 26.0.0 before 31.0.4
CVE-2023-0868
6.1
0%
Feb 23
Stealing Cookies using Reflected XSS via graph results
Affected: 29.0.0 through 31.0.3
CVE-2023-0869
6.1
0%
Feb 23
Cross-site scripting in outage/list.htm
Affected: 29.0.0 before 31.0.4
CVE-2023-0846
6.1
0%
Feb 22
Unauthenticated, stored XSS in display of alarm reduction-key
Affected: 26.1.0 before 31.0.4
CVE-2026-19596
5.9
0%
Sep 10
OpenNMS XML collector XXE allows arbitrary file read from the OpenNMS host
Affected: 36.0.0 before 36.0.4
CVE-2026-19135
5.4
0%
Aug 13
OpenNMS JEXL sandbox bypass in Measurements REST API allows ROLE_USER to load arbitrary classes
Affected: 36.0.0 before 36.0.3
CVE-2023-40312
5.2
1%
Aug 14
Reflected XSS in multiple JSP files in opennms/opennms
Affected: 31.0.8 before 32.0.2
CVE-2023-40311
4.8
1%
Aug 14
Stored XSS in multiple JSP files in opennms/opennms
Affected: 31.0.8 before 32.0.2
CVE-2026-19182
4.3
0%
Aug 13
OpenNMS v2 Alarm REST API inverted authorization check lets ROLE_REST users acknowledge alarms as any user and bypass read-only
Affected: 36.0.0 before 36.0.3
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