CVE-2026-42748 CRITICAL

CVE-2026-42748: WordPress WPify Woo Czech plugin <= 5.4.1 - Arbitrary File Upload vulnerability

Vendor Wpify

Product WPify Woo Czech

Weakness CWE-434 · Unrestricted file upload

Published May 27, 2026

Last update May 27, 2026

View on NVD All CVEs

CVSS base score

9.9/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Unrestricted Upload of File with Dangerous Type vulnerability in WPify WPify Woo Czech wpify-woo allows Upload a Web Shell to a Web Server.This issue affects WPify Woo Czech: from n/a through <= 5.4.1.

Explanation of Vulnerability in Simple Terms

02Summary

WPify Woo Czech versions up to 5.4.1 allow authenticated users with low privileges to upload files without proper validation. An attacker can upload malicious files that execute on the server, potentially compromising the entire site. The vulnerability affects confidentiality, integrity, and availability of the WordPress installation.

What an attacker can do

03Attacker Capabilities

Upload and execute malicious files on the server to compromise the site.

Potential impact on your site

04Site Impact

Site could be fully compromised, including data theft, malware injection, and complete loss of service.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account (e.g., subscriber or contributor role).

Key dates

06Disclosure timeline

May 27, 2026 CVE published

May 27, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-42748 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/434.html AskarLabs — CWE-434 write-up Unrestricted Upload of File with Dangerous Type

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