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CVE-2026-6453

6.5 · MEDIUM

The CubeWP Framework plugin for WordPress is vulnerable to SQL Injection in all versions up to and including 1.1.30.

Published Aug 1, 2026CWE-89EPSS 0.47%

Overview

CVE-2026-6453 is a medium-severity vulnerability. It was published on August 1, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/functions/admin-functions.php#L2655Refplugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L251Refplugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L261Refplugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/functions/admin-functions.php#L2655Refplugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L251Refplugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L261Refplugins.trac.wordpress.org/changeset?reponame=&old=3627740%40cubewp-framework&new=3627740%40cubewp-frameworkRefwww.wordfence.com/threat-intel/vulnerabilities/id/a4647620-e06a-49d5-8f9d-a59cb5a999b1?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-6453?

CVE-2026-6453 is a medium-severity vulnerability. It was published on August 1, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-6453?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-6453?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-6453?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-6453 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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