# CVE-2021-25934: OpenNMS Horizon vulnerable to XSS

Source: https://junglewise.ai/threats/cve-2021-25934-opennms-horizon-vulnerable-to-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-05-24  
License: CC BY 4.0 with a link back

CVE-2021-25934 · Severity: info · Published 2022-05-24

OpenNMS Horizon vulnerable to XSS

Technologies: [org.opennms:opennms (Maven)](https://junglewise.ai/threats/technologies/org-opennms-opennms). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2021-25934 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-25934 being exploited in the wild.

**How severe is CVE-2021-25934?** Informational severity, published 24 May 2022.

**Which products and versions are affected?** org.opennms:opennms (Maven) ECOSYSTEM:introduced=18.0.0-1,last_affected=27.1.0-1.

**Is there a fix for CVE-2021-25934?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2021-25934?** Check whether you run org.opennms:opennms (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- org.opennms:opennms (Maven) ECOSYSTEM:introduced=18.0.0-1,last_affected=27.1.0-1

## Identifiers

- CVE-2021-25934
- GHSA-9hhc-cc6c-99hh

## Related threats

- [OpenNMS Meridian and Horizon vulnerable to Cross-site Scripting](https://junglewise.ai/threats/cve-2023-0867-opennms-meridian-and-horizon-vulnerable-to-cross-site-scripting)
- [OpenNMS has potential Insertion of Sensitive Information into Log File vulnerability](https://junglewise.ai/threats/cve-2023-0815-opennms-has-potential-insertion-of-sensitive-information-into-log)
- [OpenNMS Horizon and Meridian vulnerable to Cross-site Scripting](https://junglewise.ai/threats/cve-2023-0846-opennms-horizon-and-meridian-vulnerable-to-cross-site-scripting)
- [OpenNMS Horizon RCE via JEXL2 expression](https://junglewise.ai/threats/cve-2021-3396-opennms-horizon-rce-via-jexl2-expression)
- [Cross-site Scripting in OpenNMS Horizon](https://junglewise.ai/threats/cve-2021-25933-cross-site-scripting-in-opennms-horizon)