Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/ap-background/tags/3.8.2/includes/fun
- https://wordpress.org/plugins/ap-background/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e4045a2b-2bbc-4335-b6d
FAQ
What is CVE-2025-9561?
CVE-2025-9561 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 vers...
How severe is CVE-2025-9561?
CVE-2025-9561 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-9561?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.