Mautic up to 7.1.1 Campaign Import Feature path traversal

Summaryinfo

A vulnerability has been found in Mautic up to 7.1.1 and classified as critical. Affected by this issue is some unknown functionality of the component Campaign Import Feature. The manipulation leads to path traversal. This vulnerability is documented as CVE-2026-9559. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mautic up to 7.1.1. It has been rated as critical. This issue affects an unknown part of the component Campaign Import Feature. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A path traversal vulnerability exists in the campaign import feature of Mautic 7. When extracting uploaded ZIP files during campaign imports, a flaw in the validation logic allows file paths to escape the intended temporary directories. An authenticated user with campaign import privileges (campaign:imports:create) can write arbitrary PHP files to sensitive system directories. An attacker can exploit this to overwrite critical internal configuration or cache components, resulting in Remote Code Execution (RCE) under the context of the web server user.

The weakness was released by Nguyễn Văn Long as GHSA-6r9h-4h75-7q4x. The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-9559 since 05/26/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 7.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1724). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• Open Source Mautic

Productinfo

Name

• Mautic

Version

• 7.1.0
• 7.1.1

License

• open-source

Website

• Product: https://github.com/mautic/mautic/

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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