Permissions, Privileges, and Access Controls in Minimal Coming Soon & Maintenance Mode - CVE-2020-6168
Published: January 9, 2020
Vulnerability identifier: #VU24152
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-6168
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WebFactory Ltd
Affected software:
Minimal Coming Soon & Maintenance Mode
Minimal Coming Soon & Maintenance Mode
Detailed vulnerability description
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to improper permission check in the "is_admin()" function. A remote user can send a simple request to enable and disable maintenance mode on a vulnerable site.
PoC:
/wp-admin/admin.php?action=csmm_change_status&new_status=enabled&redirect=/wp-admin/
/wp-admin/admin.php?action=csmm_change_status&new_status=disabled&redirect=/wp-admin/
How to mitigate CVE-2020-6168
Install updates from vendor's website.