CVE-2025-47452 is a critical vulnerability classified under CWE-434 (Unrestricted Upload of File with Dangerous Type) affecting the RexTheme WP VR WordPress plugin, versions up to and including 8.5.26. This vulnerability allows an attacker with at least low-level privileges (PR:L) to upload arbitrary files, including web shells, to the web server hosting the vulnerable plugin. The vulnerability requires no user interaction (UI:N) and can be exploited remotely over the network (AV:N) with low attack complexity (AC:L). The scope of the vulnerability is changed (S:C), meaning that exploitation can affect resources beyond the initially vulnerable component, potentially compromising the entire web server environment. Successful exploitation results in high impact on confidentiality, integrity, and availability (C:H/I:H/A:H), as attackers can execute arbitrary code, gain persistent access, manipulate data, and disrupt services. The vulnerability stems from insufficient validation or restrictions on file types during the upload process, allowing dangerous file types such as PHP scripts to be uploaded and executed. No patches or fixes have been published at the time of analysis, and no known exploits have been reported in the wild yet, though the critical severity and ease of exploitation make this a high-risk issue for affected WordPress sites using the WP VR plugin.

For European organizations, this vulnerability poses a significant risk, especially for those relying on WordPress sites with the RexTheme WP VR plugin for virtual reality content or immersive experiences. Exploitation could lead to full server compromise, data breaches involving sensitive customer or business information, defacement of websites, and disruption of online services. Organizations in sectors such as e-commerce, tourism, education, and media that use WP VR to enhance user engagement are particularly vulnerable. The ability to upload and execute web shells could facilitate lateral movement within internal networks, leading to broader organizational compromise. Additionally, compromised websites could be used as platforms for launching further attacks, including phishing or malware distribution, impacting the organization's reputation and compliance with data protection regulations such as GDPR. The critical severity and network accessibility of the vulnerability increase the urgency for European entities to address this threat promptly.

1. Immediate mitigation involves disabling or uninstalling the WP VR plugin until a security patch is released by RexTheme. 2. Implement strict file upload validation and filtering at the web server or application firewall level to block executable file types such as .php, .phtml, .php5, and other potentially dangerous extensions. 3. Employ a Web Application Firewall (WAF) with rules specifically designed to detect and block web shell upload attempts and suspicious file uploads. 4. Restrict file upload permissions and directories to the minimum necessary, ensuring that uploaded files cannot be executed as scripts by configuring the web server (e.g., disabling script execution in upload directories). 5. Monitor web server logs and file system changes for unusual activity indicative of exploitation attempts, such as unexpected file uploads or modifications. 6. Enforce the principle of least privilege for WordPress user roles to limit the ability of attackers to upload files. 7. Regularly back up website data and configurations to enable rapid recovery in case of compromise. 8. Stay informed on updates from RexTheme and apply security patches immediately upon release. 9. Conduct security audits and penetration testing focusing on file upload functionalities to identify and remediate similar vulnerabilities proactively.