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Tool Directory

CVE-2026-13157

HighPublished

Theme Demo Import <= 1.1.3 - Admin+ Arbitrary File Upload

Published: Aug 1, 2026
Updated: Aug 5, 2026
Assigning CNA: WPScan
Evidence observed: Aug 8, 2026

Primary CVSS

7.2/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 28.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Demo Import WordPress plugin through 1.1.3 does not validate the type of files uploaded during demo-content import (the WordPress file-type test is disabled), allowing high-privilege users (Administrator by default, including non-super-admin site administrators on multisite) to upload executable PHP files to the uploads directory.

Sources

CVE-2026-13157PoC
Proof of concept and root-cause analysis for an authenticated arbitrary file upload in WordPress Theme Demo Import leading to remote code execution via a PHP webshell.

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