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CVE-2026-6453— CubeWP Framework <= 1.1.30 - Authenticated (Subscriber+) SQL Injection via 'relation_id' Parameter

Quick assessment

Affected
cubewp1211 CubeWP Framework
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress CubeWP Framework是WordPress基金会的一个网站后台内容管理框架。 WordPress CubeWP Framework 1.1.30及之前版本存在SQL注入漏洞，该漏洞源于cubewp_remove_relation() AJAX函数对relation_id参数输入清理不足，可能允许经过身份验证的攻击者（具有订阅者级别及以上权限）追加额外的SQL查询，导致SQL注入。

CVSS 6.5 · Medium EPSS 0.47% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
cubewp1211 CubeWP Framework ≤ 1.1.30 affected
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I. Basic Information for CVE-2026-6453

Vulnerability Information
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Vulnerability Title
CubeWP Framework <= 1.1.30 - Authenticated (Subscriber+) SQL Injection via 'relation_id' Parameter
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress CubeWP Framework SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress CubeWP Framework是WordPress基金会的一个网站后台内容管理框架。 WordPress CubeWP Framework 1.1.30及之前版本存在SQL注入漏洞，该漏洞源于cubewp_remove_relation() AJAX函数对relation_id参数输入清理不足，可能允许经过身份验证的攻击者（具有订阅者级别及以上权限）追加额外的SQL查询，导致SQL注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
cubewp1211 CubeWP Framework 0 ~ 1.1.30 -

II. Public POCs for CVE-2026-6453

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III. Intelligence Information for CVE-2026-6453

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Patches & Fixes for CVE-2026-6453 (4)

Other References for CVE-2026-6453 (1)

IV. Related Vulnerabilities

Same product: CubeWP Framework
Same vendor: cubewp1211
Same weakness: CWE-89

V. Comments for CVE-2026-6453

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