--- title: "CVE-2026-8778: MIPL Grouped Checkout Fields for WooCommerce – Customize & Organize Checkout Fields - Unrestricted File Upload" description: "MIPL Grouped Checkout Fields for WooCommerce – Customize & Organize Checkout Fields plugin for WordPress <= 1.2.1 contains an unrestricted file upload vulnerability caused by missing file type validation in the mipl_wc_upload_file function, letting unauthenticated attackers upload arbitrary files, potentially leading to remote code execution, exploit requires no authentication." url: https://panop.io/threat-heartbeat/CVE-2026-8778/ --- # CVE-2026-8778 MIPL Grouped Checkout Fields for WooCommerce – Customize & Organize Checkout Fields - Unrestricted File Upload MIPL Grouped Checkout Fields for WooCommerce – Customize & Organize Checkout Fields plugin for WordPress <= 1.2.1 contains an unrestricted file upload vulnerability caused by missing file type validation in the mipl\_wc\_upload\_file function, letting unauthenticated attackers upload arbitrary files, potentially leading to remote code execution, exploit requires no authentication. CVSS base score 9.8 /10 Critical CISA KEV Not listed Public exploit None known Authentication Not required EPSS 1.14% chance of exploitation in 30 days [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-8778) ## Details Type Unrestricted File Upload Impact Remote Code Execution, File System Write CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Published 11 September 2026 Updated 15 October 2026 Weakness [CWE-434](https://cwe.mitre.org/data/definitions/434.html) ## Vendor fix Update to the latest version beyond 1.2.1. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-8778](https://nvd.nist.gov/vuln/detail/CVE-2026-8778) - [https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/mipl-wc-checkout-fields.php#L260](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/mipl-wc-checkout-fields.php#L260) - [https://plugins.trac.wordpress.org/changeset?sfp\_email=&sfph\_mail=&reponame=&new=3552029%40mipl-wc-checkout-fields%2Ftrunk%2Finclude%2Fclass-mipl-wc-cf-checkout-block.php&old=3549283%40mipl-wc-checkout-fields%2Ftrunk%2Finclude%2Fclass-mipl-wc-cf-checkout-block.php&sfp\_email=&sfph\_mail=](https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3552029%40mipl-wc-checkout-fields%2Ftrunk%2Finclude%2Fclass-mipl-wc-cf-checkout-block.php&old=3549283%40mipl-wc-checkout-fields%2Ftrunk%2Finclude%2Fclass-mipl-wc-cf-checkout-block.php&sfp_email=&sfph_mail=) - [https://www.wordfence.com/threat-intel/vulnerabilities/id/ac1257a9-7c8e-43aa-b21a-93a77b456aa4?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/ac1257a9-7c8e-43aa-b21a-93a77b456aa4?source=cve) - [https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/include/class-mipl-wc-cf-checkout-block.php#L415](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/include/class-mipl-wc-cf-checkout-block.php#L415) - [https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/mipl-wc-checkout-fields.php#L260](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/mipl-wc-checkout-fields.php#L260) - [https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/include/class-mipl-wc-cf-checkout-block.php#L415](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/include/class-mipl-wc-cf-checkout-block.php#L415) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)