Vulnerability identifier: #VU56299

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: CVE-2021-34646

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Booster for WooCommerce
Web applications / Modules and components for CMS

Vendor: Algoritmika Ltd

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists in the "process_email_verification" function due to a random token generation weakness in the "reset_and_mail_activation_link" function found in the ~/includes/class-wcj-emails-verification.php file. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Booster for WooCommerce: 1.0.0 - 5.4.3

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External links
http://www.wordfence.com/vulnerability-advisories/#CVE-2021-39316

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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.