CVE-2026-6261

HIGH 8.8

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

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-434
Vendor	muffingroup
Product	betheme
Published	May 5, 2026

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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

MuffinGroup / Betheme

0 ≤ 28.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/722c04c3-8f74-4081-b3a4-cb1ae2027312?source=cve support.muffingroup.com: https://support.muffingroup.com/changelog/

Credits

Craig Smith Leonid Semenenko