#VU47866 SQL injection in Loginizer - CVE-2020-27615

Vulnerability identifier: #VU47866

Vulnerability risk: High

CVSSv4.0: 9.3 [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]

CVE-ID: CVE-2020-27615

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Loginizer
Web applications / Modules and components for CMS

Vendor: Raj Kothari

Description

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Loginizer: 1.0 - 1.6.3

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External links
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/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.