Jenkins Git Plugin < 4.8.3 XSS

medium Nessus Plugin ID 155627


An application running on a remote web server host is affected by a cross-site scripting vulnerability.


According to its its self-reported version number, the version of the Jenkins Git Plugin running on the remote web server is prior to 4.8.3. It is, therefore, affected by a cross-site scripting vulnerability due to it not escaping the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade the Jenkins Git Plugin to version 4.8.3 or later.

See Also

Plugin Details

Severity: Medium

ID: 155627

File Name: jenkins_security_advisory_2021-10-06_plugins.nasl

Version: 1.3

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 11/19/2021

Updated: 4/11/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-21684


Risk Factor: Low

Score: 3


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cloudbees:jenkins, cpe:/a:jenkins:jenkins

Required KB Items: installed_sw/Jenkins

Exploit Ease: No known exploits are available

Patch Publication Date: 10/6/2021

Vulnerability Publication Date: 8/12/2014

Reference Information

CVE: CVE-2021-21684