CVE-2026-40750 CRITICAL

CVE-2026-40750: WordPress Kids Online Store theme <= 0.8.9 - Arbitrary File Upload vulnerability

Vendor Themagnifico52
Product Kids Online Store
Weakness CWE-434 · Unrestricted file upload
Published June 16, 2026
Last update June 16, 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 themagnifico52 Kids Online Store allows Upload a Web Shell to a Web Server. This issue affects Kids Online Store: from n/a through 0.8.9.

Explanation of Vulnerability in Simple Terms

02Summary

Kids Online Store versions up to 0.8.9 allow authenticated users to upload files without proper validation. An attacker with low-level access can upload malicious files that execute on the server, potentially compromising the entire site. The vulnerability affects confidentiality, integrity, and availability of the application and connected systems.

What an attacker can do

03Attacker Capabilities

Upload and execute malicious files on the server to run their own code and compromise the site.

Potential impact on your site

04Site Impact

Any authenticated user can upload files to take over the site, steal data, or disrupt service.

Conditions required to exploit

05Prerequisites

Attacker must have a low-level user account on the site; no user interaction required.

Key dates

06Disclosure timeline

June 16, 2026 CVE published
June 16, 2026 Record updated

Related vulnerabilities

08Related CVE

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