Unauthenticated PHP Object Injection in Geo Controller Plugin by WordPress
CVE-2026-78286

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Geo Controller
Vendor
CVE Published:
27 August 2026

What is CVE-2026-78286?

The Geo Controller plugin for WordPress versions up to and including 8.9.8 is susceptible to an unauthenticated PHP Object Injection vulnerability. This weakness allows attackers to exploit the plugin without authentication, potentially leading to unauthorized access and manipulation of the site's data. It is crucial for users of affected versions to implement security measures, including updates and patches, to mitigate the risks associated with this vulnerability.

Affected Version(s)

Geo Controller <= 8.9.8

References

https://patchstack.com/database/wordpress/plugin/cf-geopl...
vdb-entry

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Supakiad S. (m3ez) | Patchstack Bug Bounty Program
.