CVE•Published 2022-11-21•Modified 2026-04-08•1 article on news•6 live references•NVD data

CVE-2022-3861Muffingroup · Betheme

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 11% of all CVEs

Weaknesses (CWE)

CWE-502Deserialization of Untrusted Data

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..

Timeline

Published 2022-11-21

Modified 2026-04-08

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2022-3861

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · WP plugin path

http.html:"/wp-content/plugins/betheme/"

Matches any site loading the "betheme" plugin — doesn't rely on Shodan's vuln tag.

Shodan · product

product:"Muffingroup Betheme"

All exposed Muffingroup Betheme instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Betheme"

HTTP body or banner mentions "Betheme" — catches deploys Shodan didn't identify as a product.