Magepeopleteam Mage Eventpress Plugin up to 5.7.8 on WordPress mep_grant_shop_manager_access page privileges management

Summaryinfo

A vulnerability categorized as problematic has been discovered in Magepeopleteam Mage Eventpress Plugin up to 5.7.8. This issue affects the function mep_grant_shop_manager_access. Executing a manipulation of the argument page can lead to privileges management. This vulnerability is registered as CVE-2026-109381. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Magepeopleteam Mage Eventpress Plugin up to 5.7.8. It has been declared as problematic. This vulnerability affects the function mep_grant_shop_manager_access. The manipulation of the argument page with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-109381 since 10/12/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/28/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• Magepeopleteam

Name

• Mage Eventpress Plugin

Version

• 5.7.0
• 5.7.1
• 5.7.2
• 5.7.3
• 5.7.4
• 5.7.5
• 5.7.6
• 5.7.7
• 5.7.8

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CPE 2.2info

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