CVE-2026-109381: Privilege Escalation (CVSS 7.2)

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.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0043

Probability of exploitation

0.38%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-269 CWE-269

References

Other References

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

Frequently Asked Questions

What is CVE-2026-109381? +

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. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-109381? +

CVE-2026-109381 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0043, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-109381? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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