CVE-2025-9561
AP Background 3.8.1 - 3.8.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary File Upload via advParallaxBackAdminSaveSlider Function
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | hovanesvn |
| Product | ap background |
| Published | Oct 3, 2025 |
| Last Updated | Oct 3, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
hovanesvn / AP Background
3.8.1 ≤ 3.8.2
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/e4045a2b-2bbc-4335-b6d2-af7a046f1f92?source=cve wordpress.org: https://wordpress.org/plugins/ap-background/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ap-background/tags/3.8.2/includes/functions.admin.php
Credits
Kenneth Dunn