GHSA-W9GV-H9QH-63CM
Vulnerability from github – Published: 2026-08-01 09:30 – Updated: 2026-08-01 09:30
VLAI
Details
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.
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2026-16144"
],
"database_specific": {
"cwe_ids": [
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-01T09:17:00Z",
"severity": "HIGH"
},
"details": "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": "GHSA-w9gv-h9qh-63cm",
"modified": "2026-08-01T09:30:25Z",
"published": "2026-08-01T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16144"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L1033"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L172"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L277"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L90"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.19/Inc/Frontend/class-form-processor.php#L976"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L1033"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L172"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L277"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L90"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kali-forms/tags/2.4.20/Inc/Frontend/class-form-processor.php#L976"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3623024%40kali-forms\u0026new=3623024%40kali-forms"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9d692aff-8bb2-45bb-9caf-bc33d3ed5b10?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- 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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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