CVE-2021-21636: jenkins project jenkins team foundation server plugin Missing Authorization
CVSS: 4.3v3.1MediumModified
AliasesGHSA-vg28-9f43-gmh5
Published 30-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21636 is a medium (CVSS 4.3) Missing Authorization vulnerability in jenkins project jenkins team foundation server plugin. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.6% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v3.1 (NVD)EPSS score
0.79%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 30-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A missing permission check in Jenkins Team Foundation Server Plugin 5.157.1 and earlier allows attackers with Overall/Read permission to enumerate credentials ID of credentials stored in Jenkins.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NSourcesAll 2 agree
- OSV · MavenEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.79%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.79% on 22-09-2026
22-09-202622-10-2026
EPSS score0.79%
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
- team_foundation_server≤ 5.157.1
Jenkins project1 product
- jenkins team foundation server plugin≥ unspecified, ≤ 5.157.1
Org.jenkins-ci.plugins1 product
- tfs≤ 5.157.1
3 vendors · 3 products
References
5 links- www.jenkins.io/security/advisory/2021-03-30/X Refsource CONFIRM
- www.openwall.com/lists/oss-security/2021/03/30/1Mailing ListX Refsource MLISTWEBThird Party Advisory