CVE-2021-24472: 
WordPress vulnerability analysis and mitigation

CVE-2021-24472 affects the Onair2 WordPress theme (versions < 3.9.9.2) and KenthaRadio plugin (versions < 2.0.2). The vulnerability was discovered by Andreas Klöbl and publicly disclosed on June 28, 2021. This security issue exposes proxy functionality to unauthenticated users, potentially leading to Server Side Request Forgery (SSRF) and Remote File Inclusion (RFI) vulnerabilities (WPScan).

The vulnerability stems from exposed proxy functionality that allows unauthenticated users to send requests that cause the web server to fetch and display content from any URI. The vulnerability is classified as RFI under OWASP Top 10 category A1: Injection and CWE-98. It has been assigned a CVSS score of 4.3 (medium severity). A proof of concept demonstrates the vulnerability can be exploited using the parameter 'qtproxycall' in the URL (WPScan).

When exploited, this vulnerability allows attackers to perform Server Side Request Forgery (SSRF) and Remote File Inclusion (RFI) attacks on the affected website. This means attackers can potentially force the server to fetch and execute malicious content from external sources, potentially leading to server compromise (WPScan).

The vulnerability has been fixed in Onair2 theme version 3.9.9.2 and KenthaRadio plugin version 2.0.2. Users are strongly advised to update to these versions or later to mitigate the risk (WPScan).