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CVE-2020-2231

Improper Neutralization of Input During Web Page Generation in Jenkins

5.4 MediumPublic exploitFix available

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

5.30%Up 1.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.4

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
CVE-2020-2231
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
3.5 LowAV:N/AC:M/Au:S/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
CVE-2020-2231
Updated
2026-11-02
EUVDEUVD-2022-4412 No score

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
EUVD-2022-4412
Updated
2026-11-03
GitHub AdvisoriesGHSA-jpvq-v729-7j2h 5.4

Improper Neutralization of Input During Web Page Generation in Jenkins

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
GHSA-jpvq-v729-7j2h
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
OSV 5.4

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
CVE-2020-2231
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-jpvq-v729-7j2h 5.4

Improper Neutralization of Input During Web Page Generation in Jenkins

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
GHSA-jpvq-v729-7j2h
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Updated
2026-11-02
Show 4 moreShow less
OSVRHSA-2020:3808 8.0

Red Hat Security Advisory: OpenShift Container Platform 4.3.38 jenkins and openshift security update

Record
RHSA-2020:3808
CVSS 3.1
8.0 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2020:3841 7.7

Red Hat Security Advisory: OpenShift Container Platform 4.5.13 jenkins security update

Record
RHSA-2020:3841
CVSS 3.1
7.7 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVRHSA-2020:4223 7.7

Red Hat Security Advisory: OpenShift Container Platform 3.11.306 jenkins security update

Record
RHSA-2020:4223
CVSS 3.1
7.7 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Updated
2026-11-02
OSVBIT-jenkins-2020-2231 No score

Jenkins 2.251 and earlier, LTS 2.235.3 and earlier does not escape the remote address of the host starting a build via 'Trigger builds remotely', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the Authentication Token.

Record
BIT-jenkins-2020-2231
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.jenkins-ci.main:jenkins-core
Maven
 through 2.235.3
2.235.4
org.jenkins-ci.main:jenkins-core
Maven
 2.237 to 2.251
2.252
jenkins
Bitnami
 before 2.251.1
2.251.1
org.jenkins-ci.main:jenkins-core
Maven
 before 2.235.4, plus listed versions
1.3961.3971.3981.3991.400
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1.4011.4031.4041.4051.4061.4071.4081.4091.409.11.409.21.409.31.4101.4111.4121.4131.4141.4151.4161.4171.4181.4191.4201.4211.4221.4231.4241.424.11.424.21.424.31.424.41.424.51.424.61.4251.4261.4271.4281.4291.4301.4311.4321.4331.4341.4351.4361.437
2.235.4
org.jenkins-ci.main:jenkins-core
Maven
 2.237 up to 2.252, plus listed versions
2.2382.2392.2402.2412.242
Show 12 moreShow less
2.2432.2442.2452.2462.2472.2482.2492.249.12.249.22.249.32.2502.251
2.252
jenkins
Red Hat:openshift:4.3::el7
From an advisory covering 9 CVEs
 before 0:2.235.5.1600415514-1.el7
0:2.235.5.1600415514-1.el7
openshift
Red Hat:openshift:4.3::el8
From an advisory covering 9 CVEs
 before 0:4.3.37-202009120213.p0.git.0.dffefe4.el8
0:4.3.37-202009120213.p0.git.0.dffefe4.el8
openshift-hyperkube
Red Hat:openshift:4.3::el8
From an advisory covering 9 CVEs
 before 0:4.3.37-202009120213.p0.git.0.dffefe4.el8
0:4.3.37-202009120213.p0.git.0.dffefe4.el8
jenkins
Red Hat:openshift:4.5::el7
From an advisory covering 4 CVEs
 before 0:2.235.5.1600414805-1.el7
0:2.235.5.1600414805-1.el7
jenkins
Red Hat:openshift:3.11::el7
From an advisory covering 4 CVEs
 before 0:2.235.5.1600415953-1.el7
0:2.235.5.1600415953-1.el7

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBJenkins 2.235.3 - 'X-Forwarded-For' Stored XSS2020-12-14

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-2231 is a medium vulnerability (CVSS 5.4) in Jenkins, published August 12, 2020. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.30%, the 92nd percentile. Fixed in org.jenkins-ci.main:jenkins-core 2.235.4.

References

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Left out here: 572 versions. The JSON record has them.

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