SQL injection in WP Fastest Cache plugin

1) SQL injection

EUVDB-ID: #VU83231

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-2023-6063

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: Yes

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 within the is_user_admin() function from the WpFastestCacheCreateCache class. 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 updates from vendor's website.

Vulnerable software versions

WP Fastest Cache: 0.8.3.1 - 1.2.1

CPE2.3

• cpe:2.3:a:emrevona:wp-fastest-cache:0.8.3.1:*:*:*:*:wordpress:*:*
• cpe:2.3:a:emrevona:wp-fastest-cache:0.8.3.2:*:*:*:*:wordpress:*:*
• cpe:2.3:a:emrevona:wp-fastest-cache:0.8.3.3:*:*:*:*:wordpress:*:*

External links

https://wpscan.com/blog/unauthenticated-sql-injection-vulnerability-addressed-in-wp-fastest-cache-1-2-2/

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.