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CVE-2025-9561

HIGH 8.8 CVSS 3.1
Published
October 3, 2025
Last modified
October 12, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • hovanesvn AP Background — From 3.8.1 (including) to 3.8.2 (including)

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ap-background/tags/3.8.2/includes/functions.admin.php
  • wordpress.org https://wordpress.org/plugins/ap-background/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e4045a2b-2bbc-4335-b6d2-af7a046f1f92?source=cve
  • nvd.nist.gov Official NVD record