WordPress · Betheme · CVE-2022-3861
**Name of the Vulnerable Software and Affected Versions**
Betheme theme for WordPress versions up to, and including, 26.5.1.4
**Description**
The issue concerns PHP Object Injection via deserialization of untrusted input. This is made possible through 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. Authenticated attackers with contributor level permissions and above can inject a PHP Object, potentially allowing them to execute code, retrieve sensitive data, or delete files if a POP chain is present.
**Recommendations**
For versions up to, and including, 26.5.1.4, consider disabling the `mfn builder import`, `mfn builder import page`, `importdata`, `importsinglepage`, and `importfromclipboard` functions as a temporary workaround until a patch is available. Restrict access to the `import`, `mfn-items-import-page`, and `mfn-items-import` parameters to minimize the risk of exploitation. Avoid using these parameters in the affected functions until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.