CVE-2026-9843
The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the view_page function in all versions up to, and including, 1.5.1. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires an administrator to view or edit the poisoned form entry, at which point PHP's bracket parser reshapes the attacker-crafted JSON key to bypass the stored-path isset check and trigger deletion of the traversal-specified file.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- Base score: 8.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.04%
- Percentile among all scored CVEs: 63
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution75 % - Primary impact
T1490Inhibit System Recoveryimpact85 % - Secondary impact
T1059Command and Scripting Interpreterexecution70 %
Vector CVSS con UI:R (requiere interacción del administrador para ver/editar la entrada envenenada) indica ejecución en cliente. CWE-22 (path traversal) permite borrado de archivos arbitrarios y RCE si se elimina wp-config.php.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-22
References
- https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L435
- https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L747
- https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/includes/data.php#L539
- https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/includes/plugin-pages.php#L1197
- https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/templates/view.php#L559
- https://plugins.trac.wordpress.org/changeset/3578556/contact-form-entries
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4169b390-0972-4aa9-ae04-f5f67afe15ef?source=cve
Raw JSON (NVD)
Show
{
"id": "CVE-2026-9843",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-9843",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-06-22T14:06:09.924845Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.1,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "crmperks",
"product": "Database for Contact Form 7, WPforms, Elementor forms",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.5.1"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-06-20T02:16:26.910",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L435",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/contact-form-entries.php#L747",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/includes/data.php#L539",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/includes/plugin-pages.php#L1197",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-entries/tags/1.5.1/templates/view.php#L559",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3578556/contact-form-entries",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4169b390-0972-4aa9-ae04-f5f67afe15ef?source=cve",
"source": "security@wordfence.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security@wordfence.com",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The Database for Contact Form 7, WPforms, Elementor forms plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the view_page function in all versions up to, and including, 1.5.1. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires an administrator to view or edit the poisoned form entry, at which point PHP's bracket parser reshapes the attacker-crafted JSON key to bypass the stored-path isset check and trigger deletion of the traversal-specified file."
}
],
"lastModified": "2026-06-22T16:43:14.450",
"sourceIdentifier": "security@wordfence.com"
}