FKIE_CVE-2026-6453

Vulnerability from fkie_nvd - Published: 2026-08-01 09:17 - Updated: 2026-08-12 21:00
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/functions/admin-functions.php#L2655
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L251
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L261
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/functions/admin-functions.php#L2655
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L251
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L261
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3627740%40cubewp-framework&new=3627740%40cubewp-framework
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/a4647620-e06a-49d5-8f9d-a59cb5a999b1?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "CubeWP Framework",
          "vendor": "cubewp1211",
          "versions": [
            {
              "lessThanOrEqual": "1.1.30",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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-\u003eprepare(). The wp_unslash() call explicitly removes the backslash escaping that WordPress\u0027s 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."
    }
  ],
  "id": "CVE-2026-6453",
  "lastModified": "2026-08-12T21:00:37.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-6453",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-03T18:39:48.465932Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-01T09:17:02.530",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/functions/admin-functions.php#L2655"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L251"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/tags/1.1.29/cube/modules/custom-fields/class-cubewp-relationships.php#L261"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/functions/admin-functions.php#L2655"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L251"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/cubewp-framework/trunk/cube/modules/custom-fields/class-cubewp-relationships.php#L261"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3627740%40cubewp-framework\u0026new=3627740%40cubewp-framework"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a4647620-e06a-49d5-8f9d-a59cb5a999b1?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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