OpenNMS Stored XSS via SNMP Trap Alerts
Priority LOW 33CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP trap supplied data. By creating a malicious SNMP trap, an attacker can store an XSS payload which will trigger when a user of the web UI views the events list page. This issue was fixed in version 18.0.2, released on September 20, 2016.
Why it matters now
EPSS 0.00849 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The OpenNMS Group | OpenNMS | 18.0.1 – 18.0.1 | — | No fix listed | CNA |
- OpenNMS VendorThe OpenNMS Group Affected 18.0.1 – 18.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opennms:opennms:*:*:*:*:*:*:*:* | before 18.0.2-1 | Vulnerable | The OpenNMS Group |
- cpe:2.3:a:opennms:opennms:*:*:*:*:*:*:*:* Versions before 18.0.2-1 Vulnerable ·The OpenNMS Group
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6555
- 2026-10-03 Alias added: GHSA-5mg8-9hx2-j7wf
References
More The OpenNMS Group Opennms vulnerabilities
- TI-2015-06530 OpenNMS has a default password of rtc for the rtc account, which makes it easier for… CVSS 2.0HIGH 10.0
- TI-2020-01603 Junos Space: OpenNMS is accessible via port 9443 CVSS 3.1CRITICAL 9.8
- TI-2016-05620 OpenNMS Stored XSS via SNMP Agent Data CVSS 3.1HIGH 7.1
- TI-2021-07942 Cross-site scripting in OpenNMS CVSS 3.1MEDIUM 5.4
- TI-2014-03229 Multiple cross-site scripting (XSS) vulnerabilities in OpenNMS before 1.12.7 allow remote… CVSS 2.0MEDIUM 4.3
- TI-2008-05789 Cross-site scripting (XSS) vulnerability in surveillanceView.htm in OpenNMS 1.5.94 allows… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2016-6555 · CVE Program
- CVE-2016-6555 · NVD
- FIRST EPSS
- GHSA-5mg8-9hx2-j7wf · GitHub Advisory Database · CC BY 4.0
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