CVE-2022-3861

HIGH 8.8

Betheme <= 26.5.1.4 - Authenticated (Subscriber+) PHP Object Injection

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

The Betheme theme for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 26.5.1.4 via deserialization of untrusted input supplied via the import, mfn-items-import-page, and mfn-items-import parameters passed through the mfn_builder_import, mfn_builder_import_page, importdata, importsinglepage, and importfromclipboard functions. This makes it possible for authenticated attackers, with subscriber level permissions and above to inject a PHP Object. The additional presence of a POP chain would make it possible for attackers to execute code, retrieve sensitive data, delete files, etc..

CWE	CWE-502
Vendor	muffingroup
Product	betheme
Published	Nov 21, 2022
Last Updated	Apr 8, 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 ≤ 26.5.1.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/f5e984d5-2537-4a4a-a071-084e0c1c3b5e?source=cve muffingroup.com: https://muffingroup.com/betheme/ github.com: https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2022-3861.txt wordfence.com: https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-3861

Credits

Julien Ahrens