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Fencer Vulns
high 8.1

CVE-2023-0870 json

Form Can Be Manipulated with Cross-Site Request Forgery (CSRF)

published 2023-03-22 3 y ago modified 2026-06-17 4 mo ago also GHSA-jxr6-7qg5-8wv6 , EUVD-2023-1053

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

A form can be manipulated with cross-site request forgery in multiple versions of OpenNMS Meridian and Horizon. This can potentially allow an attacker to gain access to confidential information and compromise integrity. The solution is to upgrade to Meridian 2023.1.1 or Horizon 31.0.6 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.

Patch / fix

  • maven org.opennms:opennms-webapp 31.0.6
  • The OpenNMS Group Horizon 31.0.6

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
NVD 3.1 6.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
GitHub 3.1 6.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.opennms:opennms-webapp
<31.0.6
31.0.6

Affected products

  • The OpenNMS Group Meridian
  • The OpenNMS Group Horizon

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.