CVE-2021-25933
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 Stored Cross-Site Scripting, since the function validateFormInput() performs improper validation checks on the input sent to the groupName and groupComment parameters. Due to this flaw, an authenticated attacker could inject arbitrary script and trick other admin users into downloading malicious files which can cause severe damage to the organization using opennms.
AI Insight
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
2- OpenNMS/OpenNMS Horizondescription
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
7- github.com/advisories/GHSA-jjhw-5mxp-2g2qghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-25933ghsaADVISORY
- github.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01%2Cghsax_refsource_MISCWEB
- github.com/OpenNMS/opennms/commit/8a97e6869d6e49da18b208c837438ace80049c01,ghsaWEB
- github.com/OpenNMS/opennms/commit/eb08b5ed4c5548f3e941a1f0d0363ae4439fa98cghsax_refsource_MISCWEB
- github.com/OpenNMS/opennms/commit/f3ebfa3da5352b4d57f238b54c6db315ad99f10eghsax_refsource_MISCWEB
- www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25933ghsax_refsource_MISCWEB
News mentions
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