TI-2022-03539 Aliases CVE-2022-3861 GHSA-qmhr-xwh2-cg99

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

MEDIUM 44CWE-502Published 2022-11-21 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

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..

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02218 82nd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MuffinGroup	Betheme	up to 26.5.1.4	—	No fix listed	CNA

Betheme VendorMuffinGroup Affected up to 26.5.1.4 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:muffingroup:betheme::::::wordpress::*	before 26.6	Vulnerable	MuffinGroup

cpe:2.3:a:muffingroup:betheme:*:*:*:*:*:wordpress:*:* Versions before 26.6 Vulnerable ·MuffinGroup

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-3861
2026-10-03 Alias added: GHSA-qmhr-xwh2-cg99

References

Exploit 1

https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2022-3861.txt

Advisory 1

https://www.wordfence.com/vulnerability-advisories-continued/#CVE-2022-3861

Other 2

TI-2024-02509 Betheme <= 27.5.6 - Authenticated (Contributor+) PHP Object Injection CVSS 3.1HIGH 8.8
TI-2022-22322 WordPress Betheme premium theme <= 26.6.1 - Broken Access Control vulnerability CVSS 3.1HIGH 8.8
TI-2022-22167 WordPress Betheme theme <= 26.5.1.4 - Auth. PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
TI-2023-20890 WordPress BeTheme theme <= 27.1.1 - Author+ Broken Access Control vulnerability CVSS 3.1HIGH 8.2
TI-2022-22319 WordPress Betheme theme <= 26.6.1 is vulnerable to Broken Access Control CVSS 3.1HIGH 8.1
TI-2023-25880 WordPress BeTheme theme <= 27.1.1 - Contributor+ Broken Access Control vulnerability CVSS 3.1HIGH 7.6

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences