Cross-site request forgery (CSRF) vulnerability in the Mailer Plugin 1.20 for Jenkins…
Priority MEDIUM 44CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-352.
Summary
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.
Why it matters now
EPSS 0.06516 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Partial org.jenkins-ci.plugins:mailer (Maven): 1.21Red Hat: 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:mailer (Maven) | before 1.21 | 1.21 | Patch available | GHSA-6g57-h38c-q52g |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:mailer (Maven) Vendor— Affected before 1.21 Fixed in 1.21 Patch available GHSA-6g57-h38c-q52g
Remediation
- Fix · GHSA-6g57-h38c-q52g org.jenkins-ci.plugins:mailer (Maven) Fixed in 1.21 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Enterprise 3 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8718
- 2026-10-03 Alias added: GHSA-6g57-h38c-q52g
References
Exploit 1
Advisory 3
More Jenkins Mailer vulnerabilities
- TI-2020-02129 Improper certificate validation in Jenkins Mailer Plugin CVSS 3.1MEDIUM 4.8
- TI-2022-05173 Missing authorization in Jenkins Mailer Plugin CVSS 3.1MEDIUM 4.3
- TI-2022-05172 Cross-site request forgery in Jenkins Mailer Plugin CVSS 3.1MEDIUM 4.3
- TI-2017-01901 Information disclosure in jenkins-mailer-plugin CVSS 3.0LOW 3.7
Sources
- CVE-2018-8718 · CVE Program
- CVE-2018-8718 · NVD
- FIRST EPSS
- GHSA-6g57-h38c-q52g · GitHub Advisory Database · CC BY 4.0
- CVE-2018-8718 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences