6.5

CVE-2021-21637: jenkins project jenkins team foundation server plugin Missing Authorization

CVSS: 6.5v3.1MediumModified
AliasesGHSA-6364-jx4h-7564
Published 30-03-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21637 is a medium (CVSS 6.5) Missing Authorization vulnerability in jenkins project jenkins team foundation server plugin. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.6% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.97%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 30-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last 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 connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.97%

Chance of exploitation in the next 30 days

Percentile

62%

Versus all other CVEs

30-day change

0.00 pp

From 0.97% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.97%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Jenkins1 product
Jenkins project1 product
Org.jenkins-ci.plugins1 product
  • tfs≤ 5.157.1

3 vendors · 3 products

References

5 links