XSS in Javamelody
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/javamelody/javamelody/pull/555 (issue-tracking, patch)
- github.com/javamelody/javamelody/commit/de7b648eebc3254fcb82fcda60de83a212271def (patch)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/oth… (technical-description)
- www.vulncheck.com/advisories/javamelody-1.60.0-reflected-xss-via-monitoring-gra… (third-party-advisory)
Frequently asked questions
- What is CVE-2016-20102?
- CVE-2016-20102 is a medium-severity vulnerability in Javamelody, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-20.
- How severe is CVE-2016-20102?
- Medium severity. CVSS v3 base score is 6.1 out of 10.