CVE-2023-0870

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 22, 2023

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Sep 11, 2026
Patch available. Sources: github_pr.
github_pr

NMS-14865: Fixed missing forms

Fix merged in OpenNMS/opennms PR #5835 on 2023-03-07 — awaiting tagged release

https://github.com/OpenNMS/opennms/pull/5835/files

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.opennms:opennms-webapp—
  • every version up to 31.0.6: fixed in 31.0.6
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 174 total refreshes for this CVE.

  1. 2026-10-10 19:57 UTCEPSS rescore
  2. 2026-10-09 20:05 UTCEPSS rescore
  3. 2026-10-08 17:05 UTCEPSS rescore
  4. 2026-10-07 23:45 UTCEPSS rescore
  5. 2026-10-06 15:14 UTCEPSS rescore
  6. 2026-10-05 17:40 UTCEPSS rescore
  7. 2026-10-03 14:23 UTCEPSS rescore
  8. 2026-09-30 16:14 UTCEG score recompute
  9. 2026-09-30 15:01 UTCEPSS rescore
  10. 2026-09-27 13:42 UTCEPSS rescore
  11. 2026-09-26 15:55 UTCEPSS rescore
  12. 2026-09-26 00:22 UTCEPSS rescore
  13. 2026-09-24 14:00 UTCEPSS rescore
  14. 2026-09-23 17:34 UTCOSV refresh
  15. 2026-09-23 13:45 UTCEPSS rescore
  16. 2026-09-20 20:13 UTCEPSS rescore
  17. 2026-09-16 14:05 UTCEPSS rescore
  18. 2026-09-16 05:11 UTCEPSS rescore
  19. 2026-09-15 03:07 UTCEPSS rescore
  20. 2026-09-13 16:44 UTCEPSS rescore
  21. 2026-09-11 14:50 UTCEPSS rescore
  22. 2026-09-11 09:34 UTCEPSS rescore
  23. 2026-09-08 21:57 UTCEPSS rescore
  24. 2026-09-07 15:59 UTCEPSS rescore
  25. 2026-09-06 13:45 UTCEPSS rescore
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  1. 2026-09-05 15:25 UTCEPSS rescore
  2. 2026-09-04 13:57 UTCEPSS rescore
  3. 2026-09-04 12:29 UTCOSV refresh
  4. 2026-09-04 05:04 UTCEPSS rescore
  5. 2026-09-02 14:09 UTCEPSS rescore
  6. 2026-09-01 13:51 UTCEPSS rescore
  7. 2026-08-30 19:15 UTCEPSS rescore
  8. 2026-08-30 01:19 UTCEPSS rescore
  9. 2026-08-28 21:38 UTCEPSS rescore
  10. 2026-08-27 14:22 UTCEPSS rescore
  11. 2026-08-26 14:43 UTCEPSS rescore
  12. 2026-08-25 13:46 UTCEPSS rescore
  13. 2026-08-23 00:17 UTCEPSS rescore
  14. 2026-08-21 23:46 UTCEPSS rescore
  15. 2026-08-20 22:53 UTCEPSS rescore
  16. 2026-08-19 17:01 UTCEPSS rescore
  17. 2026-08-18 13:45 UTCEPSS rescore
  18. 2026-08-17 23:56 UTCOSV refresh
  19. 2026-08-17 13:44 UTCEPSS rescore
  20. 2026-08-16 14:53 UTCEPSS rescore
  21. 2026-08-16 02:12 UTCEPSS rescore
  22. 2026-08-15 01:27 UTCEPSS rescore
  23. 2026-08-13 21:58 UTCEPSS rescore
  24. 2026-08-12 13:48 UTCEPSS rescore
  25. 2026-08-09 13:44 UTCEPSS rescore
  26. 2026-08-09 13:44 UTCEPSS rescore
  27. 2026-08-08 16:34 UTCEPSS rescore
  28. 2026-08-07 16:24 UTCEPSS rescore
  29. 2026-08-06 13:44 UTCEPSS rescore
  30. 2026-08-05 19:15 UTCEPSS rescore
  31. 2026-08-04 15:07 UTCEPSS rescore
  32. 2026-08-04 10:35 UTCEPSS rescore
  33. 2026-08-03 10:33 UTCEPSS rescore
  34. 2026-08-02 18:27 UTCOSV refresh
  35. 2026-08-02 02:24 UTCEPSS rescore
  36. 2026-08-01 04:13 UTCEPSS rescore
  37. 2026-08-01 04:13 UTCEPSS rescore
  38. 2026-07-30 16:25 UTCEPSS rescore
  39. 2026-07-30 01:28 UTCEPSS rescore
  40. 2026-07-28 15:34 UTCEPSS rescore
  41. 2026-07-26 14:52 UTCEPSS rescore
  42. 2026-07-26 14:52 UTCEPSS rescore
  43. 2026-07-25 14:16 UTCEPSS rescore
  44. 2026-07-24 14:15 UTCEPSS rescore
  45. 2026-07-23 14:16 UTCEPSS rescore
  46. 2026-07-23 14:16 UTCEPSS rescore
  47. 2026-07-23 02:17 UTCEG score recompute
  48. 2026-07-22 23:05 UTCEG score recompute
  49. 2026-07-22 14:06 UTCEPSS rescore
  50. 2026-07-22 14:06 UTCEPSS rescore
  51. 2026-07-21 15:23 UTCEPSS rescore
  52. 2026-07-21 15:23 UTCEPSS rescore
  53. 2026-07-20 17:05 UTCEPSS rescore
  54. 2026-07-19 14:29 UTCEPSS rescore
  55. 2026-07-19 14:29 UTCEPSS rescore
  56. 2026-07-19 02:27 UTCEPSS rescore
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  58. 2026-07-18 10:03 UTCEPSS rescore
  59. 2026-07-18 10:03 UTCEPSS rescore
  60. 2026-07-16 17:00 UTCEPSS rescore
  61. 2026-07-16 02:23 UTCOSV refresh
  62. 2026-07-15 16:56 UTCEPSS rescore
  63. 2026-07-15 16:56 UTCEPSS rescore
  64. 2026-07-15 01:58 UTCEPSS rescore
  65. 2026-07-15 01:58 UTCEPSS rescore
  66. 2026-07-13 22:28 UTCEPSS rescore
  67. 2026-07-13 22:28 UTCEPSS rescore
  68. 2026-07-13 06:11 UTCEPSS rescore
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  70. 2026-07-12 05:44 UTCEPSS rescore
  71. 2026-07-11 08:25 UTCEPSS rescore
  72. 2026-07-11 08:25 UTCEPSS rescore
  73. 2026-07-09 19:08 UTCEPSS rescore
  74. 2026-07-08 15:13 UTCEPSS rescore
  75. 2026-07-07 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-0870?
CVE-2023-0870 is a high vulnerability published on March 22, 2023. 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.…
When was CVE-2023-0870 disclosed?
CVE-2023-0870 was first published on March 22, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-0870 actively exploited?
CVE-2023-0870 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-0870?
CVE-2023-0870 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2023-0870?
A fix for CVE-2023-0870 is available: update to the fixed version the vendor names in its advisory.

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