CVE-2026-6262: Betheme <= 28.4 - Authenticated (Contributor+) Arbitrary File Deletion via 'mfn-icon-upload'

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-05 · updated 2026-10-26
Weakness: CWE-22

Description

The Betheme theme for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 28.4. This is due to the upload_icons() function workflow using a user-controlled upload path (`mfn-icon-upload`) in a filesystem move operation without constraining it to the uploads directory. This makes it possible for authenticated attackers, with contributor-level access and above, to move/delete arbitrary local files via path traversal.

Affected products

MuffinGroup Betheme: through 28.4

References

https://support.muffingroup.com/changelog/
https://www.wordfence.com/threat-intel/vulnerabilities/id/3486f114-5625-4751-a25e-2c5ab7b15b38?source=cve

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