Summary
Cross-site Scripting in Jenkins JUnit Plugin
Jenkins JUnit Plugin 1166.va_436e268e972 and earlier does not escape test case class names in JavaScript expressions, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control test case class names in the JUnit resources processed by the plugin.
Impact
Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.
CVE-2023-25761 has a CVSS score of 5.4 (Medium). The vector is network-reachable, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1166.1168.vd6b_8042a_06de); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Already deployed Kodem?
See it in your environmentNew to Kodem? Get a demo →Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2023-25761? CVE-2023-25761 is a medium-severity cross-site scripting (XSS) vulnerability in org.jenkins-ci.plugins:junit (maven), affecting versions <= 1166.va. It is fixed in 1166.1168.vd6b_8042a_06de. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
- How severe is CVE-2023-25761? CVE-2023-25761 has a CVSS score of 5.4 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of org.jenkins-ci.plugins:junit are affected by CVE-2023-25761? org.jenkins-ci.plugins:junit (maven) versions <= 1166.va is affected.
- Is there a fix for CVE-2023-25761? Yes. CVE-2023-25761 is fixed in 1166.1168.vd6b_8042a_06de. Upgrade to this version or later.
- Is CVE-2023-25761 exploitable, and should I be worried? Whether CVE-2023-25761 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2023-25761 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2023-25761? Upgrade
org.jenkins-ci.plugins:junitto 1166.1168.vd6b_8042a_06de or later.