What the vulnerability does
01Description
The Betheme theme for WordPress is vulnerable to Arbitrary File Upload in versions up to, and including, 28.4. This is due to the upload_icons() function workflow moving and unzipping user-controlled ZIP files into a public uploads directory without validating extracted file types. This makes it possible for authenticated attackers, with author-level access and above, to upload arbitrary files (including PHP) and achieve remote code execution via the Icons icon-pack upload flow.
Explanation of Vulnerability in Simple Terms
02Summary
Betheme versions up to 28.4 allow authenticated users to upload files without proper validation. An attacker with low-level site access can upload malicious files, potentially gaining the ability to run code on the site or modify its content. Update to a version newer than 28.4 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Upload malicious files and run code on the site or modify its content.
Potential impact on your site
04Site Impact
Compromised site integrity, data theft, or malware injection if an authenticated attacker uploads malicious files.
Conditions required to exploit
05Prerequisites
Attacker must have a low-level user account on the site (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
May 5, 2026
CVE published
May 5, 2026
Record updated
