SB2020010903 - Privilege escalation in Minimal Coming Soon & Maintenance Mode plugin for WordPress

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Main Vulnerability Database SB2020010903

SB2020010903 - Privilege escalation in Minimal Coming Soon & Maintenance Mode plugin for WordPress

Published: January 9, 2020

Security Bulletin ID SB2020010903
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-6166)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green


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 export the plugin settings as a .txt file or modify the theme of the maintenance page on a vulnerable site.

PoC:

/wp-admin/admin.php?action=csmm_export_settings&redirect=/wp-admin/

/wp-admin/admin.php?action=csmm_activate_theme&theme=minimal&redirect=/wp-admin/


Remediation

Install update from vendor's website.

References