BaseFortify

Publication date: 2025-10-03

Last updated on: 2025-10-06

Assigner: Wordfence

Description

The AP Background plugin for WordPress is vulnerable to arbitrary file uploads due to missing authorization and insufficient file validation within the advParallaxBackAdminSaveSlider() handler in versions 3.8.1 to 3.8.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-03

Last Modified

2025-10-06

Generated

2026-07-06

AI Q&A

2025-10-03

EPSS Evaluated

2026-07-05

NVD

CVE-2025-9561

EUVD

EUVD-2025-32520

Affected Vendors & Products

Vendor	Product	Version / Range
wordpress	ap_background	3.8.1
wordpress	ap_background	3.8.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-434	The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Attack-Flow Graph

Executive Summary

The AP Background plugin for WordPress has a vulnerability in versions 3.8.1 to 3.8.2 that allows authenticated users with Subscriber-level access or higher to upload arbitrary files to the server. This happens because the advParallaxBackAdminSaveSlider() handler lacks proper authorization checks and sufficient file validation, potentially enabling remote code execution.

Impact Analysis

This vulnerability can allow attackers with low-level access to upload malicious files to the server, which may lead to remote code execution. This can compromise the website, allowing attackers to execute arbitrary commands, steal data, or take control of the server.

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