4.3

CVE-2021-25930: opennms horizon Cross-Site Request Forgery (CSRF)

Modified
AliasesGHSA-p63h-7hw8-5cw4
Published 20-05-2021Last modified 30-04-2025

Vulnerability summary

CVE-2021-25930 is a medium (CVSS 4.3) Cross-Site Request Forgery (CSRF) vulnerability in opennms horizon. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 20-05-2021
    PublishedVulnerability first disclosed.
  2. 30-04-2025
    Last modifiedVulnerability information updated.

Description

In OpenNMS Horizon, versions opennms-1-0-stable through opennms-27.1.0-1; OpenNMS Meridian, versions meridian-foundation-2015.1.0-1 through meridian-foundation-2019.1.18-1; meridian-foundation-2020.1.0-1 through meridian-foundation-2020.1.6-1 are vulnerable to CSRF, due to no CSRF protection, and since there is no validation of an existing user name while renaming a user. As a result, privileges of the renamed user are being overwritten by the old user and the old user is being deleted from the user list.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.63% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (whitesourcesoftware.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Opennms2 products
  • horizon≥ 1.0, < 27.1.1
  • meridian≥ 2015.1.0, < 2019.1.19 | ≥ 2020.1.0, < 2020.1.7
Org.opennms2 products
  • opennms≥ 1.0.0, < 27.1.1
  • opennms-config≥ 1.0.0, < 27.1.1

2 vendors · 4 products

References

5 links