CVE-2025-10726 is a critical SQL Injection vulnerability affecting the WPRecovery plugin for WordPress, developed by quantumrose. This vulnerability exists in all versions up to and including version 2.0. The root cause is improper neutralization of special elements in the 'data[id]' parameter, which is used directly in SQL queries without adequate escaping or parameterization. This allows unauthenticated attackers to inject arbitrary SQL commands into the database query. The injected SQL can be used to extract sensitive information from the database, compromising confidentiality. Moreover, the query result is passed directly to PHP's unlink() function, enabling attackers to delete arbitrary files on the server by injecting file paths. This leads to integrity and availability impacts, as critical files can be removed, potentially causing denial of service or further exploitation. The vulnerability requires no authentication or user interaction and can be exploited remotely over the network. The CVSS v3.1 base score is 9.1 (critical), reflecting the high impact on integrity and availability and the ease of exploitation. No patches or mitigations have been published at the time of disclosure, and no known exploits in the wild have been reported yet. Given the widespread use of WordPress and the popularity of plugins like WPRecovery for backup and recovery tasks, this vulnerability poses a significant risk to websites using this plugin, especially those with sensitive data or critical operations.

For European organizations, the impact of this vulnerability can be severe. Many businesses, government agencies, and NGOs in Europe rely on WordPress for their websites and internal portals, often using plugins like WPRecovery for backup and recovery. Exploitation can lead to unauthorized data disclosure, including personal data protected under GDPR, resulting in regulatory fines and reputational damage. The ability to delete arbitrary files can disrupt website availability, causing operational downtime and loss of customer trust. This is particularly critical for sectors such as finance, healthcare, and public administration, where data integrity and availability are paramount. Additionally, the vulnerability's unauthenticated nature means attackers can exploit it without prior access, increasing the risk of widespread automated attacks. The lack of known exploits currently provides a window for proactive mitigation, but the critical severity demands immediate attention to prevent potential exploitation.

European organizations should take immediate, specific actions beyond generic advice: 1) Identify all WordPress instances using the WPRecovery plugin and verify the version. 2) Disable or remove the WPRecovery plugin until a secure patch is available. 3) Implement Web Application Firewall (WAF) rules specifically targeting SQL injection attempts on the 'data[id]' parameter to block malicious payloads. 4) Conduct thorough audits of server file integrity to detect unauthorized deletions or modifications, especially focusing on critical files that could be targeted via unlink(). 5) Restrict file system permissions for the web server user to minimize the impact of arbitrary file deletions. 6) Monitor web server and database logs for suspicious SQL queries or unlink() calls. 7) Prepare incident response plans for potential exploitation scenarios, including data recovery and forensic analysis. 8) Engage with the plugin vendor or community to track patch releases and apply updates promptly once available. 9) Educate site administrators on the risks of installing unverified plugins and the importance of timely updates.