SB2020102201 - SQL injection in Loginizer plugin for WordPress

Description

This security bulletin contains information about 1 vulnerability.

1) SQL injection (CVE-ID: CVE-2020-27615)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in "loginizer_login_failed" and "lz_valid_ip" functions within the brute force protection functionality. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Remediation

Install update from vendor's website.

References

• https://plugins.trac.wordpress.org/changeset/2401010/loginizer
• https://wpdeeply.com/loginizer-before-1-6-4-sqli-injection/
• https://wpscan.com/vulnerability/10441
• https://www.zdnet.com/article/wordpress-deploys-forced-security-update-for-dangerous-bug-in-popular-plugin/