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CVE-2023-0870

21
FAUCET Score

CVE-2023-0870 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting OpenNMS Meridian and Horizon, allowing manipulation of forms. This medium-severity flaw (CVSS 6.7) requires local network access and user interaction, potentially leading to high impact on confidentiality and integrity. While no public exploits, Metasploit modules, or community discussions are reported, organizations should upgrade to Meridian 2023.1.1 or Horizon 31.0.6 or newer to mitigate the risk. It's important to note that these products are typically deployed in private networks, limiting direct internet exposure.

Impacted Technologies

VendorProductVersion(s)CPE
< 31.0.6CPE matchmatch criteria
cpe:2.3:a:opennms:horizon:*:*:*:*:*:*:*:*
>= 2020.1.0, < 2020.1.33CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
>= 2021.1.0, < 2021.1.25CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
>= 2022.1.0, < 2022.1.14CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:*:*:*:*:*:*:*:*
2023.1.0CPE matchmatch criteria
cpe:2.3:a:opennms:meridian:2023.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 47th percentile among its peer group of 60 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: org.opennms:opennms-webappFixed in: 31.0.6

Vendor Advisories (1)

mavenGHSA-jxr6-7qg5-8wv6medium

OpenNMS Meridian and Horizon vulnerable to Cross-Site Request Forgery

Mar 22, 2023

References

docs.opennms.com / meridian/2023/releasenotes/changelog.html
Release Notes
github.com / OpenNMS/opennms/pull/5835/files
Patch