CVE-2021-21666: jenkins project jenkins kiuwan plugin Cross-site Scripting
CVSS: 6.1v3.1MediumModified
AliasesGHSA-8h77-3xwr-hqhh
Published 10-06-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21666 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in jenkins project jenkins kiuwan plugin. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.1% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
1.22%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Jenkins Kiuwan Plugin 1.6.0 and earlier does not escape query parameters in an error message for a form validation endpoint, resulting in a reflected cross-site scripting (XSS) vulnerability.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.22%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
0.00 pp
From 1.22% on 20-09-2026
20-09-202620-10-2026
EPSS score1.22%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Jenkins1 product
- kiuwan≤ 1.6.0
Jenkins project1 product
- jenkins kiuwan plugin≥ unspecified, ≤ 1.6.0
Org.jenkins-ci.plugins1 product
- kiuwanJenkinsPlugin< 1.6.1
3 vendors · 3 products
References
5 links- www.openwall.com/lists/oss-security/2021/06/10/14Mailing ListX Refsource MLISTWEBThird Party Advisory
