Vulnerability identifier: #VU20940

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

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

Vendor: LifterLMS

Description

The vulnerability allows a remote attacker to create an administrator account.

The vulnerability exists in the "get_author_id" function in the “includes/class.llms.generator.php” script due to the plugin will automatically create the corresponding administrator account if it cannot retrieve the user ID and email address of the author of the courses in the imported payload. A random administrator password is created by using the "wp_generate_password" function. A remote attacker can click on the login page “Lost your password” link and change the password.  

Note: This vulnerability exists due to the CVE-2019-15896 issue described above.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LifterLMS: 3.6.2 - 3.34.5

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External links
http://blog.nintechnet.com/critical-vulnerability-fixed-in-wordpress-lifterlms-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, proof of concept for this vulnerability is available.