CVE-2026-6453 json
CubeWP Framework <= 1.1.30 - Authenticated (Subscriber+) SQL Injection via 'relation_id' Parameter
published 2026-08-01 3 mo ago modified 2026-08-12 2 mo ago also EUVD-2026-51792
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- cubewp1211 CubeWP Framework
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/a4647620-e06a-49d5-8f9d-a59cb5a999b1?source=cve
- plugins.trac.wordpress.org /browser/cubewp-framework/trunk/cube/functions/admin-functions.php#L2655
- plugins.trac.wordpress.org /browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L261
- plugins.trac.wordpress.org /browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L261
- plugins.trac.wordpress.org /browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L251
- plugins.trac.wordpress.org /browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L251
- plugins.trac.wordpress.org /browser/cubewp-framework/tags/1.1.29/cube/functions/admin-functions.php#L2655
- plugins.trac.wordpress.org /changeset?reponame=&old=3627740%40cubewp-framework&new=3627740%40cubewp-framework
Sources
- CVE List CVE-2026-6453
- NVD CVE-2026-6453
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.