What’s Vulnerable › Vulnerabilities

CVE-2016-20102: JavaMelody < 1.60.0 Reflected XSS via monitoring graph parameter

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-22
• Weakness: CWE-79

Description

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.

Affected products

• JavaMelody: from 1.8.2 before 1.60.0 — fixed in 1.60.0

How to fix

Upgrade to a fixed version: JavaMelody 1.60.0. Check the vendor advisory for mitigations.

References

• https://github.com/javamelody/javamelody/commit/de7b648eebc3254fcb82fcda60de83a212271def
• https://github.com/javamelody/javamelody/pull/555
• 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

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