CVE-2026-6261CWE-434

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

High · published May 5, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
55.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00786 · 55.7th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-05-05T11:25Z
EPSS history
Timeline
  • 05 MAY 11:25Z
    Betheme <= 28.4 - Authenticated (Author+) Arbitrary File Upload to Remote Code Execution via Icon Pack Upload
    cvelistv5