---
id: CVE-2025-9897
title: >-
  The AP Background plugin for WordPress is vulnerable to Cross-Site Request
  Forgery in all versions up to, and including, 3.8.2
summary: >-
  The AP Background plugin for WordPress is vulnerable to Cross-Site Request
  Forgery in all versions up to, and including, 3.8.2. This is due to missing or
  incorrect nonce validation on the advParallaxBackAdminSaveSlider function.
  This mak…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-352
published: '2025-10-03'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T22:10:00.563'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-9897'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/ap-background/tags/3.8.2/includes/functions.admin.php#L135
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/f6f12812-3c14-41c1-b14b-af84f835a773?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00133
epssPercentile: 0.02834
ingestedAt: '2026-10-01T18:55:42.294Z'
---

## Overview

The AP Background plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.8.2. This is due to missing or incorrect nonce validation on the advParallaxBackAdminSaveSlider function. This makes it possible for unauthenticated attackers to create or modify background sliders via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.