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OpenAdvisories
High · 8.8 CVE-2026-6261 EUVD-2026-27301GHSA-xjrr-vq8h-v4xh

Betheme <= 28.4 - Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload

Published May 5, 2026 · Updated May 5, 2026 · Assigned by Wordfence

Description

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.

Affected products

VendorProductAffectedFixed
MuffinGroup Betheme ≤ 28.4 —

References