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WordPress EUVDEUVD-2026-39690

| CVE-2026-56027 CRITICAL
Unrestricted Upload of File with Dangerous Type (CWE-434)
2026-06-26 audit@patchstack.com GHSA-55c9-xmg9-j8rp
9.9
CVSS 3.1 · Vendor: patchstack
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Severity by source

Vendor (patchstack) PRIMARY
9.9 CRITICAL
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from Vendor (patchstack) · only source for this CVE.

CVSS VectorVendor: patchstack

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jun 26, 2026 - 15:40 vuln.today
CVE Published
Jun 26, 2026 - 15:16 cve.org
CRITICAL 9.9

DescriptionCVE.org

Customer Arbitrary File Upload in Booster for WooCommerce <= 8.0.1 versions.

AnalysisAI

Arbitrary file upload in Booster for WooCommerce (plugin slug woocommerce-jetpack) versions <= 8.0.1 lets an authenticated customer-level user upload arbitrary files to the WordPress server, enabling web shell deployment and remote code execution. The CVSS 3.1 score of 9.9 reflects a scope change (S:C) where a low-privilege shop customer can fully compromise the underlying host. …

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Recommended ActionAI

24 hours: Disable the Booster for WooCommerce plugin and configure the web server to prevent PHP execution in upload directories (via .htaccess or web server settings). …

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EUVD-2026-39690 vulnerability details – vuln.today

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