Arbitrary File Upload Affecting mautic/core package, versions >=4.0.0-alpha1, <4.4.18>=5.0.0-alpha, <5.2.9>=6.0.0-alpha, <6.0.7
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Start learning- Snyk IDSNYK-PHP-MAUTICCORE-14172810
- published3 Dec 2025
- disclosed2 Dec 2025
- creditJason Woods
Introduced: 2 Dec 2025
NewCVE-2025-13827 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade mautic/core to version 4.4.18, 5.2.9, 6.0.7 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary File Upload via the GrapesJsBuilder file upload process. An attacker can execute arbitrary code on the server by uploading malicious files without restriction.
Note:
This is only exploitable if the media folder is not restricted from running files.