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

Deserialization of Untrusted Data
CVE CVE-2022-3861
CVSS 8.8 (High)
Publicly Published November 18, 2022
Last Updated December 5, 2022
Researcher Julien Ahrens - RCE Security


The Betheme theme for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 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..



1 affected software package

Software Type Theme
Software Slug betheme
Patched? Yes
Remediation Update to version 26.6, or a newer patched version
Affected Version
  • <=
Patched Version
  • 26.6

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