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CVE-2026-115188: mautic/core

Severity

9.9 (CRITICAL)

Vendor

MAUTIC

Affected versions

7.0.0 through before 7.2.2

Patch status

Unknown

Published

2026-10-26T14:16:30.047

Modified

2026-10-26T16:17:16.027

Why it matters

This critical vulnerability allows an authenticated user to upload arbitrary files, including server-side scripts, leading to remote code execution on the Mautic web server. This could result in compromise of the Mautic configuration, application secrets, and sensitive contact data.

Recommended admin actions

• Identify and inventory all Mautic installations.
• Restrict user permissions for the campaign import feature to trusted users only.
• Monitor web server logs for suspicious file uploads or unexpected script execution in Mautic directories.
• Implement strong access controls and network segmentation for Mautic instances.
• Await vendor release of a patched version and prepare for immediate upgrade.

Technical summary

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.

View the official NVD record for CVE-2026-115188

AI-enriched (MEDIUM confidence). Validate against the vendor advisory before taking production action.