CVE-2016-6556

OpenNMS Stored XSS via SNMP Agent Data

MEDIUM
6.1
CVSS Score
Published: June 15, 2022 at 06:35 PM UTC
Updated: June 17, 2026 at 12:51 AM UTC
1 product affected across 1 vendorOpenNMS

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%

Description

OpenNMS version 18.0.1 and prior are vulnerable to a stored XSS issue due to insufficient filtering of SNMP agent supplied data. By creating a malicious SNMP 'sysName' or 'sysContact' response, an attacker can store an XSS payload which will trigger when a user of the web UI views the data. This issue was fixed in version 18.0.2, released on September 20, 2016.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 18.0.2-118.0.1
Affected range stops below 18.0.2-1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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