CVE-2026-40748: themagnifico52 Kids Gift Shop arbitrary file upload

CVE-2026-40748 · Severity: critical · CVSS 9.9 · Published 2026-06-17

The Kids Gift Shop theme for WordPress contains a critical security flaw that allows registered users with low-level 'Subscriber' permissions to upload malicious files to the server. This could allow an attacker to take complete control of the website, steal sensitive customer data, or disrupt business operations. The vulnerability is particularly dangerous as it can be used to install 'backdoors' for persistent access.

Vendors: Themagnifico52.

Quick answers

Is CVE-2026-40748 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-40748 being exploited in the wild.
How severe is CVE-2026-40748?
Critical severity, with a CVSS score of 9.9, published 17 June 2026.
Which products and versions are affected?
Themagnifico52 Kids Gift Shop <= 0.5.4.
Is there a fix for CVE-2026-40748?
A patch was published on 2026-06-17: Patch confirmed available in version 0.5.5 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-40748 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-40748?
Check whether you run Themagnifico52 Kids Gift Shop at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An unrestricted file upload vulnerability (CWE-434) exists in the Kids Gift Shop theme for WordPress in versions up to and including 0.5.4. The flaw allows an authenticated attacker with Subscriber-level permissions to upload files with dangerous extensions, such as .php, to the web server. Because the application fails to properly validate the file type or content, an attacker can achieve remote code execution (RCE) and full site compromise. The vulnerability has been addressed in version 0.5.5.

Affected products

  • themagnifico52 Kids Gift Shop <= 0.5.4

Timeline

  • 2026-02-22: other: Reported by Denver Jackson
  • 2026-04-20: disclosed: Initial disclosure by Patchstack
  • 2026-06-17: advisory: NVD published date
  • 2026-06-17: patched: Patch confirmed available in version 0.5.5

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.