CVE-2021-24144: 
WordPress vulnerability analysis and mitigation

CVE-2021-24144 affects the Contact Form 7 Database Addon WordPress plugin versions before 1.2.5.6. The vulnerability was discovered by researcher SunCSR-thiennv and was publicly disclosed on January 25, 2021. This security issue involves unvalidated input in the plugin that could allow remote attackers to perform CSV injection attacks (WPScan).

The vulnerability is classified as a CSV Injection (CWE-1236) with a CVSS score of 4.7 (medium severity). The issue stems from improper validation of input data that allows attackers to inject arbitrary formulas into CSV files. The vulnerability falls under the OWASP Top 10 category A1: Injection (WPScan).

When exploited, this vulnerability could enable attackers to execute arbitrary commands on the victim's system through Microsoft Excel's DDE function or leak data via maliciously injected hyperlinks. The impact is particularly significant when exported CSV files are opened in applications like Microsoft Excel (WPScan).

The vulnerability can be exploited by sending specially crafted form submissions containing malicious formulas. A proof of concept exists demonstrating how attackers can inject formulas such as '=SUM(1+2)' and potentially execute system commands through DDE functions (WPScan).

The vulnerability has been fixed in version 1.2.5.6 of the Contact Form 7 Database Addon plugin. Users are advised to update to this version or later to mitigate the risk (WPScan).