CVE-2025-13065 - CVE House

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Status published High CVE-2025-13065

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

8.8 CVSS

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Michael Mazzolini

References

More from brainstormforce

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Ultimate Addons for Elementor (Formerly Elementor Header & Footer Builder) <= 2.4.6 - Missing Authorization to Authenticated (Subscriber+) Limited Settings Update

SureForms – Drag and Drop Form Builder for WordPress <= 1.7.3 - Unauthenticated PHP Object Injection (PHAR) Triggered via Admin Submission Deletion

SureForms – Drag and Drop Form Builder for WordPress <= 1.7.3 - Unauthenticated Arbitrary File Deletion Triggered via Administrator Submission Deletion

SureTriggers <= 1.0.78 - Authorization Bypass due to Missing Empty Value Check to Unauthenticated Administrative User Creation

Spectra – WordPress Gutenberg Blocks <= 2.19.0 - Authenticated (Contributor+) Stored Cross-Site Scripting

Affected Vendor

brainstormforce

View all reports →

Affected Software

Starter Templates – AI-Powered Templates for Elementor & Gutenberg

Vulnerable Versions:

0

Timeline

Official Publish: December 6th, 2025

Last Modified: April 8th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1505.003 Web Shell

T1105 Ingress Tool Transfer

Command and Control

T1059 Command and Scripting Interpreter

T1565.002 Stored Data Manipulation