cubewp1211 CubeWP Framework Plugin up to 1.1.30 on WordPress cubewp_remove_relation relation_id sql injection

Summaryinfo

A vulnerability labeled as critical has been found in cubewp1211 CubeWP Framework Plugin up to 1.1.30. This vulnerability affects the function cubewp_remove_relation. Executing a manipulation of the argument relation_id can lead to sql injection. The identification of this vulnerability is CVE-2026-6453. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in cubewp1211 CubeWP Framework Plugin up to 1.1.30. It has been declared as critical. This vulnerability affects the function cubewp_remove_relation. The manipulation of the argument relation_id with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 advisory is available at wordfence.com. This vulnerability was named CVE-2026-6453 since 04/16/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/01/2026). This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-51792). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• cubewp1211

Name

• CubeWP Framework Plugin

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23
• 1.1.24
• 1.1.25
• 1.1.26
• 1.1.27
• 1.1.28
• 1.1.29
• 1.1.30

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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