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CVE-2023-43495

Jenkins Cross-site Scripting vulnerability

5.4 MediumFix available

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

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

1.02%Up 1.0 points since Sep 22, 2023
90%50%10%1%

What each source reports

NVD Score used5.4

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

Record
CVE-2023-43495
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
CVE ListNo score

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

Record
CVE-2023-43495
Updated
2026-11-02
EUVDEUVD-2023-24330.0

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

Record
EUVD-2023-2433
CVSS
0.0 NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-5j46-5hwq-gwh78.0

Jenkins Cross-site Scripting vulnerability

ExpandableDetailsNote allows annotating build log content with additional information that can be revealed when interacted with.

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the caption constructor parameter of ExpandableDetailsNote.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide caption parameter values.

As of publication, the related API is not used within Jenkins (core), and the Jenkins security team is not aware of any affected plugins. Jenkins 2.424, LTS 2.414.2 escapes caption constructor parameter values.

Record
GHSA-5j46-5hwq-gwh7
CVSS 3.1
8.0 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
OSV5.4

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

Record
CVE-2023-43495
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-5j46-5hwq-gwh78.0

Jenkins Cross-site Scripting vulnerability

ExpandableDetailsNote allows annotating build log content with additional information that can be revealed when interacted with.

Jenkins 2.423 and earlier, LTS 2.414.1 and earlier does not escape the value of the caption constructor parameter of ExpandableDetailsNote.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to provide caption parameter values.

As of publication, the related API is not used within Jenkins (core), and the Jenkins security team is not aware of any affected plugins. Jenkins 2.424, LTS 2.414.2 escapes caption constructor parameter values.

Record
GHSA-5j46-5hwq-gwh7
CVSS 3.1
8.0 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-79
Updated
2026-11-02
OSVBIT-jenkins-2023-43495No score

Jenkins LTS 2.414.1 and earlier does not escape the value of the 'caption' constructor parameter of 'ExpandableDetailsNote', resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to control this parameter.

Record
BIT-jenkins-2023-43495
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.jenkins-ci.main:jenkins-core
Maven
2.50 up to 2.414.2
2.414.2
org.jenkins-ci.main:jenkins-core
Maven
2.415 up to 2.424
2.424
jenkins
Bitnami
before 2.424.0
2.424.0
org.jenkins-ci.main:jenkins-core
Maven
2.50 up to 2.414.2, plus listed versions
2.1002.1012.1022.1032.104
Show 45 moreShow less
2.1052.1062.1072.107.12.107.22.107.32.1082.1092.1102.1112.1122.1132.1142.1152.1162.1172.1182.1192.1202.1212.121.12.121.22.121.32.1222.1232.1242.1252.1262.1272.1282.1292.1302.1312.1322.1332.1342.1352.1362.1372.1382.138.12.138.22.138.32.138.42.140
2.414.2
org.jenkins-ci.main:jenkins-core
Maven
2.415 up to 2.424, plus listed versions
2.4162.4172.4182.4192.4202.4212.4222.423
2.424

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2023-43495 is a medium vulnerability (CVSS 5.4) in Jenkins, published September 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.02%, the 63rd percentile. Fixed in org.jenkins-ci.main:jenkins-core 2.414.2.

References

This page doesn't list everything

Left out here: 396 versions. The JSON record has them.

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