CVE-2025-47939 TYPO3 CMS Vulnerable to Unrestricted File Upload in File Abstraction Layer

What is CVE-2025-47939?

CVE-2025-47939 is a medium-severity vulnerability in Typo3 Typo3, published on 20 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

TYPO3 is an open source, PHP based web content management system. By design, the file management module in TYPO3’s backend user interface has historically allowed the upload of any file type, with the exception of those that are directly executable in a web server context. This lack of restriction means it is possible to upload files that may be considered potentially harmful, such as executable binaries (e.g., `.exe` files), or files with inconsistent file extensions and MIME types (for example, a file incorrectly named with a `.png` extension but actually carrying the MIME type `application/zip`) starting in version 9.0.0 and prior to versions 9.5.51 ELTS, 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, and 13.4.12 LTS. Although such files are not directly executable through the web server, their presence can introduce indirect risks. For example, third-party services such as antivirus scanners or malware detection systems might flag or block access to the website for end users if suspicious files are found. This could negatively affect the availability or reputation of the site. Users should update to TYPO3 version 9.5.51 ELTS, 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, or 13.4.12 LTS to fix the problem.

Weakness: CWE-434, CWE-351

Which versions are affected by CVE-2025-47939?

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

Products include Typo3 Typo3.

How do I fix CVE-2025-47939?

Upgrade typo3/cms-core to a fixed version for your release line: 10.4.50, 11.5.44, 12.4.31 or 13.4.12.

Is CVE-2025-47939 being exploited?

There is no known exploitation of CVE-2025-47939 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-9hq9-cr36-4wpj.