CVE-2026-109381

Event Booking Manager for WooCommerce <= 5.7.8 - Authenticated (Shop Manager+) Privilege Escalation to 'page' Parameter

2026-10-27 17:41
Wordfence PRISM

Strategic Overview

Status
Patched in 5.7.9
Affected Plugin
Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar
Affected Version
<= 5.7.8
CVSS
7.2High
Weakness type
CWE-269 · Improper Privilege Management
CVE
CVE-2026-109381
View all Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar vulnerabilities

At a glance

CVE-2026-109381 is a high-severity Improper Privilege Management vulnerability in the Event Booking Manager for WooCommerce WordPress plugin, affecting versions <= 5.7.8. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Shop Manager level or above. The issue is fixed in version 5.7.9; sites on affected versions should update now. Disclosed October 2026, reported by Wordfence PRISM.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-269: Improper Privilege Management

Event Booking Manager for WooCommerce <= 5.7.8 carries this weakness at page, and reaching it takes an account at Shop Manager level or above. Improper privilege management means the code lets an account end up with capabilities its role should not have.

It converts a low-privileged account into an administrative one, which makes every other restriction on the site irrelevant. For Event Booking Manager for WooCommerce the fix is 5.7.9: builds <= 5.7.8 are affected, anything from 5.7.9 onward is not.

Remediation

Update to version 5.7.9, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Event Booking Manager for WooCommerce 5.7.9 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-109381https://www.wordfence.com/threat-intel/vulnerabilities/id/076607ec-d848-4b4e-986b-31287f8f0ae4https://nvd.nist.gov/vuln/detail/CVE-2026-109381

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C