# CVE-2026-7537: MDJM Event Management arbitrary file upload in mdjm_send_comm_email Source: https://junglewise.ai/threats/cve-2026-7537-mdjm-event-management-arbitrary-file-upload-in-mdjm-send-comm Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Published: 2026-06-06. Updated: 2026-06-06 License: CC BY 4.0 with a link back CVE-2026-7537 · Severity: high · CVSS 7.2 · Published 2026-06-06 The MDJM Event Management plugin for WordPress, used for managing mobile DJ bookings and communications, contains a security flaw in its email attachment feature. This vulnerability allows an authorized administrator to upload malicious files, such as web shells, directly to the web server. If exploited, an attacker could take full control of the website, potentially leading to data theft, site defacement, or the installation of further malware. Technologies: [MDJM Event Management](https://junglewise.ai/threats/technologies/mdjm-event-management). Vendors: [MDJM](https://junglewise.ai/threats/vendors/mdjm). ## Quick answers **Is CVE-2026-7537 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-7537 being exploited in the wild. **How severe is CVE-2026-7537?** High severity, with a CVSS score of 7.2, published 6 June 2026. **Which products and versions are affected?** MDJM Event Management up to, and including, 1.7.8.3. **Is there a fix for CVE-2026-7537?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it. **How is CVE-2026-7537 attacked?** It is attacked over the network, in a software library. **Am I affected by CVE-2026-7537?** Check whether you run MDJM Event Management at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you. ## Technical details An arbitrary file upload vulnerability exists in the MDJM Event Management plugin for WordPress due to a lack of file type, extension, or MIME type validation in the mdjm_send_comm_email() function. The vulnerability is located in 'includes/admin/communications/comms-functions.php' where user-supplied files from the 'mdjm_email_upload_file' parameter are passed directly to move_uploaded_file() without sanitization. An authenticated attacker with administrator-level privileges (or the 'mdjm_comms_send' capability) can upload executable PHP files to the WordPress uploads directory. This can be leveraged to achieve remote code execution (RCE) on the underlying server. A patch was introduced in version 1.7.8.4 to address this issue. ## Affected products - MDJM MDJM Event Management (mobile-dj-manager) up to, and including, 1.7.8.3 ## Timeline - 2026-06-06: advisory: NVD publication date - 2026-06-06: disclosed: Public disclosure of vulnerability and PoC ## References - [https://github.com/d0n601/CVE-2026-7537](https://github.com/d0n601/CVE-2026-7537) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php) - [https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php](https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php) ## Related threats - [MDJM Event Management stored XSS in role creation](https://junglewise.ai/threats/cve-2026-88801-the-mdjm-event-management-and-mobile-events-manager-wordpress) - [WordPress MDJM Event Management and Mobile Events Manager arbitrary role deletion](https://junglewise.ai/threats/cve-2026-88800-the-mdjm-event-management-and-mobile-events-manager-wordpress) - [MDJM Event Management privilege escalation in WordPress plugin](https://junglewise.ai/threats/cve-2026-15017-mdjm-event-management-privilege-escalation-in-wordpress-plugin)