Description
An unrestricted file upload vulnerability exists in the campaign import feature of Mautic 7. When processing an uploaded campaign archive, the application copies the bundled asset files into a publicly accessible media directory without restricting their file names or types. An authenticated user with permission to create campaign imports can exploit this through the user interface or the API (/api/campaigns/import) to place arbitrary files, including server-side scripts, in the web root. Administrator privileges are not required. On web servers that honor per-directory configuration, such as the default Apache setup of the official Mautic Docker image, this leads to remote code execution with the privileges of the web server user, including access to the Mautic configuration, application secrets, and contact data.
Published: 2026-10-26
Score: 9.9 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

There are no official workarounds. To mitigate this vulnerability without upgrading, remove the campaign import create permission from all users who do not strictly need it and restrict it to trusted administrators, and configure the web server at server or virtual-host level, so that it cannot be overridden by files in the application directory, to deny script execution in the media/ directory.

Tracking

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Advisories

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History

Mon, 26 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description An unrestricted file upload vulnerability exists in the campaign import feature of Mautic 7. When processing an uploaded campaign archive, the application copies the bundled asset files into a publicly accessible media directory without restricting their file names or types. An authenticated user with permission to create campaign imports can exploit this through the user interface or the API (/api/campaigns/import) to place arbitrary files, including server-side scripts, in the web root. Administrator privileges are not required. On web servers that honor per-directory configuration, such as the default Apache setup of the official Mautic Docker image, this leads to remote code execution with the privileges of the web server user, including access to the Mautic configuration, application secrets, and contact data.
Weaknesses CWE-434
CWE-94
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: Mautic

Published:

Updated: 2026-10-26T15:35:53.849Z

Reserved: 2026-10-22T06:39:08.913Z

Link: CVE-2026-115188

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-26T14:16:30.047

Modified: 2026-10-26T14:21:33.887

Link: CVE-2026-115188

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses