Arbitrary file upload in Muffingroup Betheme
CVE-2026-6261
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 directo…
Vulnerability class: Unrestricted File Upload
EPSS: 0.003 (50.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Muffingroup Betheme — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-6261?
- CVE-2026-6261 is a high-severity vulnerability in Muffingroup Betheme, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-05-05.
- How severe is CVE-2026-6261?
- High severity. CVSS v3 base score is 8.8 out of 10.