CVE-2026-6453: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in cubewp1211 CubeWP Framework
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.
AI Analysis
Technical Summary
CVE-2026-6453 describes an SQL Injection vulnerability in the CubeWP Framework WordPress plugin affecting all versions up to and including 1.1.30. The issue is due to the use of wp_unslash() on the relation_id parameter, which removes escaping added by WordPress's magic quotes, followed by direct interpolation into a raw SQL query without using $wpdb->prepare(). The subsequent sanitize_text_field() call does not provide SQL injection protection. This flaw allows authenticated attackers with subscriber-level privileges or higher to inject additional SQL commands via the relation_id parameter in the cubewp_remove_relation() AJAX function.
Potential Impact
Successful exploitation allows an authenticated user with subscriber-level or higher privileges to perform SQL Injection attacks by appending additional SQL queries. This can lead to unauthorized data access or manipulation of the database contents. The CVSS score of 6.5 reflects a medium severity impact with high confidentiality impact but no integrity or availability impact.
Mitigation Recommendations
No official patch or remediation has been published yet. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the vulnerable AJAX function to trusted users only and monitor for suspicious activity related to SQL injection attempts. Avoid using the vulnerable versions of the CubeWP Framework plugin if possible.
CVE-2026-6453: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in cubewp1211 CubeWP Framework
Description
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.
CVSS v3.1
Score 6.5medium
Affected software
cubewp1211
CubeWP Framework
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6453 describes an SQL Injection vulnerability in the CubeWP Framework WordPress plugin affecting all versions up to and including 1.1.30. The issue is due to the use of wp_unslash() on the relation_id parameter, which removes escaping added by WordPress's magic quotes, followed by direct interpolation into a raw SQL query without using $wpdb->prepare(). The subsequent sanitize_text_field() call does not provide SQL injection protection. This flaw allows authenticated attackers with subscriber-level privileges or higher to inject additional SQL commands via the relation_id parameter in the cubewp_remove_relation() AJAX function.
Potential Impact
Successful exploitation allows an authenticated user with subscriber-level or higher privileges to perform SQL Injection attacks by appending additional SQL queries. This can lead to unauthorized data access or manipulation of the database contents. The CVSS score of 6.5 reflects a medium severity impact with high confidentiality impact but no integrity or availability impact.
Mitigation Recommendations
No official patch or remediation has been published yet. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the vulnerable AJAX function to trusted users only and monitor for suspicious activity related to SQL injection attempts. Avoid using the vulnerable versions of the CubeWP Framework plugin if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-16T19:53:58.136Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6dba19bf32cb7a347ed928
Added to database: 08/01/2026, 09:19:21 UTC
Last enriched: 08/08/2026, 14:25:06 UTC
Last updated: 09/15/2026, 10:01:34 UTC
Views: 60
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