CVE-2016-5091 Extbase for TYPO3 allows RCE

What is CVE-2016-5091?

CVE-2016-5091 is a high-severity code injection vulnerability in Typo3 Typo3, published on 23 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-254

Which versions are affected by CVE-2016-5091?

6 open source packages ship an affected version, including typo3/cms-extbase. It affects 1 product.

Products include Typo3 Typo3.

How do I fix CVE-2016-5091?

Upgrade typo3/cms-extbase to a fixed version for your release line: 6.2.24 or 7.6.8.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2016-5091 being exploited?

There is no known exploitation of CVE-2016-5091 in the wild and no public exploit code.

Other vulnerabilities in Typo3 Typo3

• CVE-2009-0258 Indexed Search Engine for TYPO3 Command Execution via Metacharacter Injection Critical 10.0
• CVE-2011-3583 Typo3 SQL injection due to faulty prepared statements Critical 9.8
• CVE-2011-4628 Typo3 Authentication Bypass Critical 9.8
• CVE-2023-24814 Persisted Cross-Site Scripting in Frontend Rendering in typo3 High 8.8
• CVE-2021-41113 Cross-Site-Request-Forgery in Backend URI Handling in Typo3 High 8.8

All Typo3 Typo3 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-jxg5-35fj-ccwf.