CVE-2026-6453 cubewp1211 CVE debrief

Who should care

WordPress administrators, security teams, and users of the CubeWP Framework plugin should be aware of this vulnerability. They should verify their plugin versions, review vendor patches, and implement additional input validation and sanitization to prevent SQL injection attacks. Security teams should monitor for suspicious SQL queries and implement compensating controls for exposed systems. Vulnerability management teams should prioritize patching and ensure that affected systems are remediated. Asset inventory and configuration management teams should verify that affected assets are identified and tracked. Change management and incident response teams should be prepared to respond to potential exploitation attempts. IT and development teams should review and update their secure coding practices to prevent similar vulnerabilities in the future. Compliance and audit teams should ensure that relevant security controls are in place and verify the effectiveness of remediation efforts. Business stakeholders should be aware of the potential impact on business operations and prioritize remediation efforts accordingly. Communication and incident response teams should be prepared to respond to potential exploitation attempts and have a plan in place for communication with stakeholders. The vulnerability management team should track exceptions, retest remediated assets, and close the item only after evidence is documented. The security team should implement additional monitoring, detection, and logging for exposed assets that need extra review. The IT team should plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. The development team should review compensating controls for exposed systems while remediation is scheduled and verified. The asset management team should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. The security team should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. The incident response team should track exceptions, retest remediated assets, and close the item only after  

Technical summary

The CubeWP Framework plugin for WordPress is vulnerable to SQL Injection in all versions up to and including 1.1.30. This is due to insufficient input sanitization in the cubewp_remove_relation() AJAX function, specifically the use of wp_unslash() on the relation_id parameter before interpolating it directly into a raw SQL query without using $wpdb->prepare(). The wp_unslash() call explicitly removes the backslash escaping that WordPress's wp_magic_quotes() adds to all $_POST data, neutralizing the only layer of SQL injection protection. The sanitize_text_field() function applied afterward offers no SQL protection. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries to the existing query. The vulnerability allows attackers to inject malicious SQL code, potentially leading to data breaches or other security issues.

Defensive priority

Authenticated attackers with subscriber-level access can inject SQL queries, posing a medium-severity threat.

Recommended defensive actions

• Inventory and verify the CubeWP Framework plugin version
• Apply vendor patches or updates
• Monitor for suspicious SQL queries
• Implement additional input validation and sanitization
• Restrict access to sensitive functions

Evidence notes

The CubeWP Framework plugin for WordPress has a SQL injection vulnerability due to insufficient input sanitization in the cubewp_remove_relation() AJAX function. This allows authenticated attackers to append additional SQL queries. Evidence is limited to public CVE and NVD details. Defenders should verify affected versions, review vendor patches, and monitor for suspicious SQL queries.

Official resources