Cross-Site Request Forgery in Jenkins Mailer Plugin

published 2018-03-27 8 y ago modified 2026-06-17 4 mo ago also GHSA-6g57-h38c-q52g , EUVD-2022-2788

cvss: 8.0; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 6.5%; EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits: 1; Exploit-DB

Cross-site request forgery (CSRF) vulnerability in the Mailer Plugin 1.20 for Jenkins 2.111 allows remote authenticated users to send unauthorized mail as an arbitrary user via a /descriptorByName/hudson.tasks.Mailer/sendTestMail request.

Patch / fix

fixed in 1 links 1

maven org.jenkins-ci.plugins:mailer 1.21

github.com/jenkinsci/mailer-plugin@98e79cf commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-8718 updated 2025-11-21 cvss 6.4

jenkins-plugin-mailer: Missing permissions check in Mailer.java:doSendTestMail() allows unauthorised users to send mail

Red Hat OpenShift Enterprise 3 jenkins-mailer-plugin
affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

2018-03-27 Published
2018-06-05 First public exploit (EDB-44843)

Exploit prediction

6.52% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-44843 Jenkins Mailer Plugin < 1.20 - Cross-Site Request Forgery (Send Email) webapps, 2018-06-05

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.0	AV:N/AC:M/Au:S/C:P/I:P/A:P
GitHub	3.0	8.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.plugins:mailer	<1.21	1.21

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

github.com /jenkinsci/mailer-plugin/commit/98e79cf904769907f83894e29f50ed6b3e7eb135
web
exploit-db.com /exploits/44843/
exploit, third-party-advisory, vdb-entry
jenkins.io /security/advisory/2018-03-26/
vendor-advisory
openwall.com /lists/oss-security/2018/03/26/3
mailing-list, web, third-party-advisory
securityfocus.com /bid/103691
vdb-entry, web, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2018-8718
advisory
jenkins.io /security/advisory/2018-03-26
web
exploit-db.com /exploits/44843
web

Sources

CVE List CVE-2018-8718
GitHub Advisory GHSA-6g57-h38c-q52g
NVD CVE-2018-8718

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary