CVE-2016-20102

JavaMelody before 1.60.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject script by supplying crafted values in the graph parameter of /monitoring?part=graph. Attackers can include a closing script tag in the graph value, which is only JavaScript-escaped in HtmlCounterReport, to execute script in victims' browsers. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-18.

Score

CVSS 3.1 6.1 Medium

Status

Deferred - disclosure@vulncheck.com

Published

2026-10-20

Last modified

2026-10-22

Weaknesses

CWE-79

Affected products

• Javamelody (Javamelody Project)

References

• https://github.com/javamelody/javamelody/pull/555
• https://github.com/javamelody/javamelody/commit/de7b648eebc3254fcb82fcda60de83a212271def
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/java-melody-xss.yaml
• https://www.vulncheck.com/advisories/javamelody-1.60.0-reflected-xss-via-monitoring-graph-parameter