CVE-2023-0869

mediumpriority · track · 24EPSS 0.004 · 35 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.41% (35th) EPSS

CVSS 6.1 · medium

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

Cross-site scripting in outage/list.htm in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information. The solution is to upgrade to Meridian 2023.1.0 or newer, or Horizon 31.0.4 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.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.15.8mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:Nsecondary · ENISA EU

v3.15.8mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:Nsecondary · security@opennms.comexploitability 1.5 · impact 4.2

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-20USCWE-79US

affected products (5)

Products and version ranges known to be affected.

Horizon29.0.0 → 31.0.4enisa_euvdEU
Meridian2022.1.0 → 2023.1.0enisa_euvdEU
opennms horizon< 31.0.4nvdUScpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
opennms meridian< 2023.1.0nvdUScpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
Maven org.opennms:opennms-web-api≤ 31.0.3osvUSpkg:maven/org.opennms/opennms-web-api

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7v39-jjj6-j4j4Cross Site Scripting in OpenNMS2023-02-23ghsa · osvUS
Cross-site scripting in outage/list.htm in multiple versions of OpenNMS Meridian and Horizon allows an attacker access to confidential session information.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2023-02-23modified 2026-06-17

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+53072 more

references (8)

External citations — patches, advisories, analysis.

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