Deserialization in Muffingroup Betheme
CVE-2022-3861
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..
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: +0.000
Affected products
- Muffingroup Betheme — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/f5e984d5-2537-4a4a-a071-084e0…
- muffingroup.com/betheme/ (Product)
- github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2022-3861.txt (Exploit, Third Party Advisory)
- www.wordfence.com/vulnerability-advisories-continued/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-3861?
- CVE-2022-3861 is a high-severity vulnerability in Muffingroup Betheme, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2022-11-21.
- How severe is CVE-2022-3861?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-3861 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.