CVE-2021-21630
MediumStored XSS vulnerability in Jenkins Extra Columns Plugin
Published May 24, 2022 · Updated Jul 9, 2026 · Also known as GHSA-wx66-pm7r-2q82
Key Facts
Patch immediately- CVE-2021-21630 is a medium-severity vulnerability (CVSS 5.4 v3.1) affecting Extra Columns (Jenkins), org.jenkins-ci.plugins:extra-columns (maven), Jenkins Extra Columns Plugin.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 72% probability of exploitation in the next 30 days.
- Fixed versions are available, including Extra Columns <=1.22, org.jenkins-ci.plugins:extra-columns 1.23, Extra Columns 1.22.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
72%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
Jenkins Extra Columns Plugin 1.22 and earlier does not escape parameter values in the build parameters column, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Extra ColumnsJenkins | See advisory | 1.22 |
| org.jenkins-ci.plugins:extra-columnsmaven | See advisory | 1.23 |
| Jenkins Extra Columns Plugin | >= unspecified | n/a |
Patched Releases
Extra Columns
<=1.22
org.jenkins-ci.plugins:extra-columns
1.23
Timeline
Publicly disclosed
May 24, 2022
Last updated
Jul 9, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2021-21630
- advisoryhttps://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2222
- advisory[oss-security] 20210330 Multiple vulnerabilities in Jenkins plugins
- articlehttps://github.com/jenkinsci/extra-columns-plugin/commit/929887caba35eb78a55fee31d08fb950200a92ef
FAQ
Common Questions.
Jenkins Extra Columns Plugin 1.22 and earlier does not escape parameter values in the build parameters column, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.
Affected: Extra Columns (Jenkins); org.jenkins-ci.plugins:extra-columns (maven); Jenkins Extra Columns Plugin versions >= unspecified. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Extra Columns <=1.22, org.jenkins-ci.plugins:extra-columns 1.23, Extra Columns 1.22.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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