cve-2026-15748
CRITICAL CVSS 9.8 vulncheck_kevThe Forminator Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.56.1 via the handle_file_upload function. This is due to insufficient file type validation in handle_file_upload, where the dangerous-extension blocklist performs exact-key matching that is bypassed by pipe-alternative MIME type keys, combined with a public submission handler that trusts attacker-controlled upload field configuration injected via a forged Select field value. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.
- Published
- 2026-10-13 00:00 UTC
- Last Modified
- 2026-10-13
CVSS details not available.
No product information available.
No references available.
No linked vulnerabilities found.
{
"cvss": 9.8,
"datePublished": "2026-10-13T00:00:00Z",
"dateUpdated": "2026-10-13T00:00:00Z",
"description": "The Forminator Forms plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.56.1 via the handle_file_upload function. This is due to insufficient file type validation in handle_file_upload, where the dangerous-extension blocklist performs exact-key matching that is bypassed by pipe-alternative MIME type keys, combined with a public submission handler that trusts attacker-controlled upload field configuration injected via a forged Select field value. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.",
"dueDate": "",
"id": "CVE-2026-15748",
"kev_catalogs": [
"vulncheck"
],
"knownRansomwareCampaignUse": "Unknown",
"product": "forminator",
"requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
"severity": "CRITICAL",
"source": "vulncheck_kev",
"title": "incsub forminator Unrestricted Upload of File with Dangerous Type",
"vendor": "incsub"
}