CVE-2023-47126 Information Disclosure in Install Tool in typo3/cms-install

What is CVE-2023-47126?

CVE-2023-47126 is a low-severity vulnerability in Typo3 Typo3, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions the login screen of the standalone install tool discloses the full path of the transient data directory (e.g. /var/www/html/var/transient/). This applies to composer-based scenarios only - “classic” non-composer installations are not affected. This issue has been addressed in version 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-200

Which versions are affected by CVE-2023-47126?

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

Products include Typo3 Typo3.

How do I fix CVE-2023-47126?

Upgrade typo3/cms-install to 12.4.8 or later.

Is CVE-2023-47126 being exploited?

There is no known exploitation of CVE-2023-47126 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 BIT-typo3-2023-47126, GHSA-p2jh-95jg-2w55.