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MIPL Grouped Checkout Fields EUVDEUVD-2026-75934

| CVE-2026-8778 CRITICAL
Unrestricted Upload of File with Dangerous Type (CWE-434)
2026-09-11 Wordfence GHSA-93gg-rc58-rpgc
9.8
CVSS 3.1 · Vendor: Wordfence
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Severity by source

Vendor (Wordfence) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Unauthenticated network upload with no validation yields file write and likely code execution; full C/I/A impact warranted given RCE potential, matching the published 9.8.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Sep 11, 2026 - 04:21 vuln.today
CVE Published
Sep 11, 2026 - 03:39 cve.org
CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

Unauthenticated arbitrary file upload in the MIPL Grouped Checkout Fields for WooCommerce WordPress plugin (all versions through 1.2.1) lets remote attackers write arbitrary files to the server because the mipl_wc_upload_file function performs no file-type validation, which may escalate to remote code execution. Any WooCommerce store running this plugin is exposed to pre-authentication compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Requires only that the vulnerable plugin (<=1.2.1) be installed and active on a network-reachable WordPress site; exploitation is unauthenticated (PR:N) with no user interaction (UI:N) against default configuration. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N, C:H/I:H/A:H, base 9.8) describes the worst-credible case: network-reachable, low-complexity, unauthenticated, no user interaction, full impact - consistent with an unauthenticated file-upload-to-RCE primitive. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upstream fix available (trac changeset 3552029 modifying include/class-mipl-wc-cf-checkout-block.php); a released patched version number is not independently confirmed in the available data, so update to the latest available release above 1.2.1 once published and verify via the WordPress.org plugin page. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, scan all WooCommerce installations to identify any deployments of MIPL Grouped Checkout Fields plugin and immediately disable or uninstall the plugin. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-75934 vulnerability details – vuln.today

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