What is CVE-2021-21675?

CVE-2021-21675 is a medium-severity vulnerability in Jenkins Requests, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-06-30.

How severe is CVE-2021-21675?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-21675 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Jenkins Requests

CVE-2021-21675

A cross-site request forgery (CSRF) vulnerability in Jenkins requests-plugin Plugin 2.2.12 and earlier allows attackers to create requests and/or have administrators apply pending requests.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Jenkins Requests
Jenkins Project Requests-Plugin Plugin — versions unspecified

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

Public proof-of-concept exploits

n0-traces/cve_

References

www.jenkins.io/security/advisory/2021-06-30/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2021/06/30/1 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2021-21675?: CVE-2021-21675 is a medium-severity vulnerability in Jenkins Requests, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-06-30.
How severe is CVE-2021-21675?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-21675 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.