Reflected XSS vulnerability in Jenkins VncRecorder Plugin

MITTEL 6.1CVE-2020-2206 · GHSA-fq52-6cjf-jw59 · Published 02/07/2020 · updated 17/06/2026

Kurz gesagt

CVE-2020-2206 ist eine Schwachstelle (MITTEL (CVSS 6.1)) in org.jenkins-ci.plugins:vncrecorder, vncrecorder (jenkins).
Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.87%, höher als bei 59.0% aller Schwachstellen.
Abhilfe: auf 1.35 oder neuer aktualisieren.

Package	Affected versions	Patched versions
org.jenkins-ci.plugins:vncrecorder Maven	`< 1.35`	`1.35`
vncrecorder jenkins	`≤ 1.25`	No fix yet

Description

VncRecorder Plugin 1.25 and earlier does not escape a parameter value in the checkVncServ form validation endpoint output.

This results in a reflected cross-site scripting (XSS) vulnerability.

VncRecorder Plugin 1.35 escapes the parameter value in the output.

NVD description

Jenkins VncRecorder Plugin 1.25 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.

References

nvd.nist.gov/vuln/detail/CVE-2020-2206 · ADVISORY
jenkinsci/vncrecorder-plugin · PACKAGE
jenkins.io/security/advisory/2020-07-02 · WEB
openwall.com/lists/oss-security/2020/07/02/7 · WEB
jenkins.io/security/advisory/2020-07-02 · Vendor Advisory

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Package

Affected versions

Patched versions

org.jenkins-ci.plugins:vncrecorder

Maven

< 1.35

1.35

vncrecorder

jenkins

≤ 1.25

No fix yet

Description

VncRecorder Plugin 1.25 and earlier does not escape a parameter value in the checkVncServ form validation endpoint output.

This results in a reflected cross-site scripting (XSS) vulnerability.

VncRecorder Plugin 1.35 escapes the parameter value in the output.

NVD description

Jenkins VncRecorder Plugin 1.25 and earlier does not escape a parameter value in the checkVncServ form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.