# CVE-2018-1000176: Jenkins Email Extension Plugin showed plain text SMTP password in configuration form field

> Attackers controlling an administrator's browser can retrieve the configured SMTP password from the Jenkins Email Extension Plugin.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 May 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-gwxm-wqpq-w539

## What is CVE-2018-1000176?

CVE-2018-1000176 is a medium-severity vulnerability in n/a, published on 8 May 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An exposure of sensitive information vulnerability exists in Jenkins Email Extension Plugin 2.61 and older in src/main/resources/hudson/plugins/emailext/ExtendedEmailPublisher/global.groovy and ExtendedEmailPublisherDescriptor.java that allows attackers with control of a Jenkins administrator's web browser (e.g. malicious extension) to retrieve the configured SMTP password.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2018-1000176?

2 open source packages ship an affected version, including org.jenkins-ci.plugins:email-ext. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.jenkins-ci.plugins:email-ext` | Maven | All versions | 2.62 |
| `org.jenkins-ci.plugins:email-ext` | Maven | All versions | 2.62 |

Products: Jenkins Email Extension.

## How do I fix CVE-2018-1000176?

Upgrade org.jenkins-ci.plugins:email-ext to 2.62 or later.

## Is CVE-2018-1000176 being exploited?

There is no known exploitation of CVE-2018-1000176 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-25765](https://insights.sbomify.com/CVE-2023-25765/): Sandbox escape in Jenkins Email Extension Plugin (critical 9.9)
- [CVE-2019-1003032](https://insights.sbomify.com/CVE-2019-1003032/): Script security sandbox bypass in Jenkins Email Extension Plugin (critical 9.9)
- [CVE-2026-48920](https://insights.sbomify.com/CVE-2026-48920/): Jenkins Email Extension Plugin: Attackers able to control email content may specify `file:` URLs for images to read arbitrary files from Jenkins controller filesystem (high 8.8)
- [CVE-2020-2232](https://insights.sbomify.com/CVE-2020-2232/): Jenkins Email Extension Plugin SMTP password transmitted and displayed in plain text (high 7.5)
- [CVE-2023-25763](https://insights.sbomify.com/CVE-2023-25763/): Cross-site Scripting in Jenkins Email Extension Plugin (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1000176 and fix it if it is affected.

What it is: CVE-2018-1000176 is a medium-severity vulnerability in n/a, published on 8 May 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-1000176 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.jenkins-ci.plugins:email-ext (Maven): affected all versions; fixed in 2.62
- org.jenkins-ci.plugins:email-ext (Maven): affected all versions; fixed in 2.62

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2018-1000176/ (Markdown: https://insights.sbomify.com/CVE-2018-1000176/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1000176
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1000176
- OSV: https://osv.dev/vulnerability/CVE-2018-1000176

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1000176/
Summaries are generated and may contain mistakes; the official description above is the record.