High severity8.8NVD Advisory· Published May 20, 2021· Updated Jun 17, 2026
CVE-2021-25931
CVE-2021-25931
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 at /opennms/admin/userGroupView/users/updateUser. This flaw allows assigning ROLE_ADMIN security role to a normal user. Using this flaw, an attacker can trick the admin user to assign administrator privileges to a normal user by enticing him to click upon an attacker-controlled website.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.opennms:opennmsMaven | >= 1.0.0, < 27.1.1 | 27.1.1 |
Affected products
4- OpenNMS/OpenNMS Horizondescription
Patches
Vulnerability mechanics
References
5- github.com/OpenNMS/opennms/commit/607151ea8f90212a3fb37c977fa57c7d58d26a84nvdPatchThird Party AdvisoryWEB
- github.com/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98cnvdPatchThird Party AdvisoryWEB
- www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25931nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-2rq5-68hm-h4j8ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-25931ghsaADVISORY
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