6.1

CVE-2021-21673: jenkins project jenkins cas plugin

CVSS: 6.1v3.1MediumModified
AliasesGHSA-2vvr-5757-qp87
Published 30-06-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21673 is a medium (CVSS 6.1) vulnerability in jenkins project jenkins cas plugin. EPSS estimates a 1.58% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
1.58%
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. 30-06-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Jenkins CAS Plugin 1.6.0 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins, allowing attackers to perform phishing attacks.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.58%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.58% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.58%

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

No weakness data has been published for this record.

Affected systems

Jenkins1 product
Jenkins project1 product
Org.jenkins-ci.plugins1 product
  • cas-plugin< 1.6.1

3 vendors · 3 products

References

5 links