Arbitrary File Upload Affecting typo3/cms-core package, versions >=9.0.0, <12.4.31>=13.0.0, <13.4.12
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PHP-TYPO3CMSCORE-10188825
- published22 May 2025
- disclosed20 May 2025
- creditHamed Kohi
Introduced: 20 May 2025
NewCVE-2025-47939 (opens in a new tab)How to fix?
Upgrade typo3/cms-core to version 12.4.31, 13.4.12 or higher.
Overview
typo3/cms-core is a free open source enterprise content management system.
Affected versions of this package are vulnerable to Arbitrary File Upload via the file management module that allows to upload of any file type, except for those that are directly executable in a web server context. An attacker can introduce potentially harmful files that may disrupt third-party services such as antivirus scanners or malware detection systems, indirectly affecting the availability or reputation of the site.
Note:
After upgrading, acceptable file extensions must be set via $GLOBALS['TYPO3_CONF_VARS']['SYS']['miscfile_ext'] and the security.system.enforceAllowedFileExtensions feature flag must be enabled to enforce it.