FKIE_CVE-2026-16144

Vulnerability from fkie_nvd - Published: 2026-08-01 09:17 - Updated: 2026-08-03 20:17
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L1033
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L172
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L277
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L90
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L976
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L1033
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L172
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L277
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L90
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L976
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3623024%40kali-forms&new=3623024%40kali-forms
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/9d692aff-8bb2-45bb-9caf-bc33d3ed5b10?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-16144",
  "lastModified": "2026-08-03T20:17:13.547",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16144",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-03T19:22:31.712704Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-01T09:17:00.690",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L1033"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L172"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L277"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L90"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L976"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L1033"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L172"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L277"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L90"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L976"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3623024%40kali-forms\u0026new=3623024%40kali-forms"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9d692aff-8bb2-45bb-9caf-bc33d3ed5b10?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "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.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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