#VU25005 Cross-site request forgery in Htaccess by BestWebSoft - CVE-2020-8658

Vulnerability identifier: #VU25005

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2020-8658

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Htaccess by BestWebSoft
Web applications / Modules and components for CMS

Vendor: BestWebSoft

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists within the "htccss_nonce_name" flag due to insufficient validation of the HTTP request origin in "wp-admin/admin.php?page=htaccess.php&action=htaccess_editor". A remote attacker can trick the victim to visit a specially crafted web page that modifies the .htaccess file and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Htaccess by BestWebSoft: 1.1 - 1.8.1

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External links
https://github.com/V1n1v131r4/Exploiting-WP-Htaccess-by-BestWebSoft-Plugin/blob/master/README.md
https://wordpress.org/plugins/htaccess/#developers

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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.