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

8.8
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

Description

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..

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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
  • <= 26.5.1.4
Patched Version
  • 26.6

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