CVE-2026-16144 (GCVE-0-2026-16144)

Vulnerability from cvelistv5 – Published: 2026-08-01 07:49 – Updated: 2026-08-01 07:49
VLAI
Title
Kali Forms <= 2.4.20 - Unauthenticated Remote Code Execution via 'thisPermalink' Field Parameter
Summary
The Kali Forms — Contact Form & Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the 'thisPermalink' field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys ('thisPermalink', 'entryCounter', or 'submission_link'), as check_if_placeholders_changed() only processes POST keys present in the form's field_type_map.
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
Impacted products
Credits
Wordfence PRISM
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kali Forms \u2014 Contact Form \u0026 Drag-and-Drop Builder",
          "vendor": "wpchill",
          "versions": [
            {
              "lessThanOrEqual": "2.4.20",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wordfence PRISM"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Kali Forms \u2014 Contact Form \u0026 Drag-and-Drop Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.20 via the _save_data function. This is due to insufficient validation of the \u0027thisPermalink\u0027 field value before it overwrites a trusted callable placeholder, allowing attacker-controlled strings to reach call_user_func() in _save_data(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires the target form to define a field with a name matching one of the reserved placeholder keys (\u0027thisPermalink\u0027, \u0027entryCounter\u0027, or \u0027submission_link\u0027), as check_if_placeholders_changed() only processes POST keys present in the form\u0027s field_type_map."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-01T07:49:50.355Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9d692aff-8bb2-45bb-9caf-bc33d3ed5b10?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L1033"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L172"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L277"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L976"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L90"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L1033"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L172"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L277"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L976"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L90"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3623024%40kali-forms\u0026new=3623024%40kali-forms"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-17T18:00:17.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-07-31T19:40:39.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Kali Forms \u003c= 2.4.20 - Unauthenticated Remote Code Execution via \u0027thisPermalink\u0027 Field Parameter"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-16144",
    "datePublished": "2026-08-01T07:49:50.355Z",
    "dateReserved": "2026-07-17T17:45:06.586Z",
    "dateUpdated": "2026-08-01T07:49:50.355Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-16144",
      "date": "2026-08-03",
      "epss": "0.00688",
      "percentile": "0.49173"
    }
  }
}



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