CVE-2019-19850 TYPO3 SQL Injection in low-level Query Generator

What is CVE-2019-19850?

CVE-2019-19850 is a medium-severity SQL injection vulnerability in Typo3 Typo3, published on 17 Dec 2019. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An issue was discovered in TYPO3 before 8.7.30, 9.x before 9.5.12, and 10.x before 10.2.2. Because escaping of user-submitted content is mishandled, the class QueryGenerator is vulnerable to SQL injection. Exploitation requires having the system extension ext:lowlevel installed, and a valid backend user who has administrator privileges.

Weakness: CWE-89

Which versions are affected by CVE-2019-19850?

12 open source packages ship an affected version, including typo3/cms and typo3/cms-core. It affects 1 product.

Products include Typo3 Typo3.

How do I fix CVE-2019-19850?

Upgrade typo3/cms to a fixed version for your release line: 10.2.2, 8.7.30 or 9.5.12.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2019-19850 being exploited?

There is no known exploitation of CVE-2019-19850 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-59pj-7mjh-4465.