CVE-2026-15303

critical

Description

The 6Storage Rentals plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.27.0. This is due to the six_storage_create_wp_user() AJAX handler being registered on wp_ajax_nopriv_six_storage_create_wp_user without any nonce, capability, credential, or ownership verification, while calling wp_set_current_user() and wp_set_auth_cookie() for any WordPress user resolved by the attacker-supplied email address. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting that user's email address.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/94e987be-bdfc-4691-b250-2b7d7249df0a?source=cve

https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L3905

https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L3834

https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L14

Details

Source: Mitre, NVD

Published: 2026-08-15

Updated: 2026-08-15

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical