CVE-2025-5961 Scanner

The WordPress WPvivid Backup & Migration Plugin is a popular tool used by website administrators and developers for backing up and migrating WordPress sites. It offers functionalities for easy backup and migration processes, making site management efficient. This plugin is widely used in WordPress environments for its straightforward interface and reliability. Website owners depend on it to ensure the safety and accessibility of their site data during transfers and updates. It provides a comprehensive set of options for handling data, thus serving a crucial role in maintaining a website's integrity. Its extensive adoption underscores its perceived trustworthiness in the WordPress community.

The vulnerability present in the WPvivid Backup & Migration Plugin involves an arbitrary file upload issue. This occurs due to insufficient validation of file types during the upload process, which is managed by the 'wpvivid_upload_import_files' function. An attacker with authentication privileges can leverage this flaw to upload malicious files, including executable scripts, into the server's file system. This vulnerability critically impacts the system's security posture by potentially allowing remote code execution. The flaw primarily threatens the confidentiality, integrity, and availability of the affected WordPress instance. Such vulnerabilities must be addressed promptly to prevent exploitation.

Technical details of this vulnerability reveal that exploiting the flaw involves sending a specially crafted HTTP POST request to the 'admin-ajax.php' endpoint of the WordPress site. This request leverages the 'wpvivid_upload_import_files' action to upload an arbitrary PHP file to the server. The absence of stringent file type checks enables the acceptance and processing of these files. This opens the door for attackers to execute malicious code on the server, contingent upon initiating the PHP script via a direct call. The issue is exacerbated by this upload vector bypassing any protective checks that should normally prevent such actions. Timely correction and robust input validation measures are necessary to mitigate these vulnerabilities.

If successfully exploited, this vulnerability could lead to severe consequences for the affected website. Attackers could execute arbitrary code, potentially compromising the server and gaining unauthorized control. Sensitive information, such as user credentials and database contents, may be accessed, leading to further exploitation or data breaches. Additionally, the website's reputation could suffer if malicious content is uploaded and distributed, or if service availability is disrupted through destructive payloads. The overall security standing of a WordPress site can be seriously impaired, highlighting the importance of addressing this vulnerability quickly.

REFERENCES

• https://github.com/Nxploited/CVE-2025-5961
• https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wpvivid-backuprestore/migration-backup-staging-wpvivid-backup-migration-09116-authenticated-administrator-arbitrary-file-upload