# CVE-2026-8778

## Summary

- **CVE ID:** CVE-2026-8778
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-434
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 11, 2026

## Description

The MIPL Grouped Checkout Fields for WooCommerce – Customize & Organize Checkout Fields. plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the `mipl_wc_upload_file` function in all versions up to, and including, 1.2.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

## Affected Products

- mulika — MIPL Grouped Checkout Fields for WooCommerce. Customize & Organize Checkout Fields. (0)

## References

- [CNA](https://www.wordfence.com/threat-intel/vulnerabilities/id/ac1257a9-7c8e-43aa-b21a-93a77b456aa4?source=cve)
- [CNA](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/mipl-wc-checkout-fields.php#L260)
- [CNA](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/mipl-wc-checkout-fields.php#L260)
- [CNA](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/tags/1.2.1/include/class-mipl-wc-cf-checkout-block.php#L415)
- [CNA](https://plugins.trac.wordpress.org/browser/mipl-wc-checkout-fields/trunk/include/class-mipl-wc-cf-checkout-block.php#L415)
- [CNA](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=)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._