CVE-2021-21649

Cross-site Scripting in Jenkins Dashboard View Plugin

5.4 MediumFix available

Jenkins Dashboard View Plugin 2.15 and earlier does not escape URLs referenced in Image Dashboard Portlets, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

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

72.7%Up 72.1 points since May 12, 2021

What each source reports

NVD Score used 5.4

Record: CVE-2021-21649
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

Record: CVE-2021-21649
Updated: 2026-11-02

EUVDEUVD-2021-1350 No score

Record: EUVD-2021-1350
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jwhm-9cjm-4493 5.4

Cross-site Scripting in Jenkins Dashboard View Plugin

Jenkins Dashboard View Plugin prior to 2.16 and 2.12.1 does not escape URLs referenced in Image Dashboard Portlets, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with View/Configure permission.

As part of this fix, the property for image URLs was changed from url to imageUrl. Existing Configuration as Code configurations are still supported, but exports will emit the new property.

Record: GHSA-jwhm-9cjm-4493
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

Record: CVE-2021-21649
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-jwhm-9cjm-4493 5.4

Cross-site Scripting in Jenkins Dashboard View Plugin

As part of this fix, the property for image URLs was changed from url to imageUrl. Existing Configuration as Code configurations are still supported, but exports will emit the new property.

Record: GHSA-jwhm-9cjm-4493
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

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.jenkins-ci.plugins:dashboard-view` Maven	2.13 up to 2.16	2.16
`org.jenkins-ci.plugins:dashboard-view` Maven	before 2.12.1	2.12.1
`org.jenkins-ci.plugins:dashboard-view` Maven	2.13 up to 2.16, plus listed versions 2.142.15	2.16
`org.jenkins-ci.plugins:dashboard-view` Maven	before 2.12.1, plus listed versions 2.02.0.12.0.22.12.10 Show 21 moreShow less 2.112.122.22.32.42.52.62.72.82.92.9.12.9.102.9.112.9.122.9.22.9.32.9.42.9.52.9.62.9.72.9.9	2.12.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2021-21649 is a medium vulnerability (CVSS 5.4) in Jenkins Dashboard View, published May 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 72.7%, the 99th percentile. Fixed in org.jenkins-ci.plugins:dashboard-view 2.16.