SB2019120304 - Privilege escalation in Mesmerize and Materialis themes for WordPress
Published: December 3, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: N/A)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the "companion_disable_popup" function only checks the nonce and will pass two user input, $_POST['value'] and $_POST['option'], to the "update_option" function. A remote authenticated attacker can copy the nonce, use it to send an AJAX request and modify WordPress core options in the "wp_options" table.
Remediation
Install update from vendor's website.