PT-2020-20254 · WordPress+1 · Wordpress+1

Published 2020-02-06 · Updated 2020-02-07 · CVE-2020-8658

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions BestWebSoft Htaccess plugin versions prior to 1.8.2

Description The issue allows for Cross-Site Request Forgery (CSRF) attacks due to incorrect validation of the htccss nonce name flag, which is supposed to pass a nonce to WordPress for anti-CSRF protection. This incorrect implementation enables an attacker to direct a victim to a malicious webpage, modifying the .htaccess file and potentially taking control of the website. The attack exploits the "wp-admin/admin.php?page=htaccess.php&action=htaccess editor" endpoint.

Recommendations For BestWebSoft Htaccess plugin versions prior to 1.8.2, update to version 1.8.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the wp-admin/admin.php?page=htaccess.php&action=htaccess editor endpoint to minimize the risk of exploitation.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2020-8658

Affected Products

Bestwebsoft Htaccess

Wordpress

References · 5

• 🔥 https://github.com/V1n1v131r4/Exploiting-WP-Htaccess-by-BestWebSoft-Plugin/blob/master/README.md · Exploit
• https://osv.dev/vulnerability/CVE-2020-8658 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8658 · Security Note
• https://wordpress.org/plugins/htaccess/#developers · Note
• https://wpvulndb.com/vulnerabilities/10060 · Note