CVE-2022-3861 Betheme <= 26.5.1.4 - Authenticated (Subscriber+) PHP Object Injection
Authenticated attackers can exploit PHP object injection in the Betheme WordPress theme to execute code or access data via unsafe deserialization.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-3861?
CVE-2022-3861 is a high-severity unsafe deserialization vulnerability in MuffinGroup Betheme, published on 21 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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..
Weakness: CWE-502
Which versions are affected by CVE-2022-3861?
It affects 1 product.
Products include Muffingroup Betheme.
How do I fix CVE-2022-3861?
No fix has been published for CVE-2022-3861 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2022-3861 being exploited?
There is no known exploitation of CVE-2022-3861 in the wild and no public exploit code.
Other vulnerabilities in MuffinGroup Betheme
- CVE-2024-2694 Betheme <= 27.5.6 - Authenticated (Contributor+) PHP Object Injection
- CVE-2023-39998 WordPress BeTheme theme <= 27.1.1 - Author+ Broken Access Control vulnerability
- CVE-2023-47770 WordPress BeTheme theme <= 27.1.1 - Contributor+ Broken Access Control vulnerability
- CVE-2023-29101 WordPress Betheme Theme <= 26.7.5 is vulnerable to Cross Site Scripting (XSS)
- CVE-2025-3077 Betheme <= 28.0.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Sources
Also known as GHSA-qmhr-xwh2-cg99.