Description
WordPress Plugin Rich Widget is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly sanitize user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Rich Widget version 0.2.4 is vulnerable; other versions may also be affected.
Remediation
Restrict access to test.html (e.g. via .htaccess) or disable the plugin until a fix is available
References
Related Vulnerabilities
Drupal Core 9.2.x Multiple Vulnerabilities (9.2.0 - 9.2.14)
WordPress 4.8.x Multiple Vulnerabilities (4.8 - 4.8.11)
WordPress Plugin dsIDXpress IDX Cross-Site Scripting (2.1.0)
WordPress Plugin Front-End Only Users Cross-Site Scripting (3.1.10)
WordPress Plugin Correos Woocommerce Arbitrary File Download (1.3.0.0)