Starter Templates <= 4.4.41 - Authenticated (Author+) Arbitrary File Upload via WXR Upload Bypass

2025-12-05 21:07

mikemyers

Strategic Overview

Status

Patched in 4.4.42

Affected PluginStarter Templates – AI-Powered Templates for Elementor & Gutenberg

Affected Version<= 4.4.41

CVSS8.8High

CVECVE-2025-13065

View all Starter Templates – AI-Powered Templates for Elementor & Gutenberg vulnerabilities

Vulnerability Overview

The Starter Templates plugin for WordPress is vulnerable to arbitrary file upload in all versions up to, and including, 4.4.41. This is due to insufficient file type validation detecting WXR files, allowing double extension files to bypass sanitization while being accepted as a valid WXR file. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Technical Analysis

REMEDIATION: Update to version 4.4.42, or a newer patched version --- IDENTIFIER: CWE-434 (Unrestricted Upload of File with Dangerous Type) The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

External References

https://www.cve.org/CVERecord?id=CVE-2025-13065 https://www.wordfence.com/threat-intel/vulnerabilities/id/439e4c99-8f34-4e66-9d86-c0cbb8cf6da0

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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