PHP Object Injection Vulnerability in Anesta WordPress Theme by Anesta
CVE-2026-66567

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Anesta
Vendor
CVE Published:
10 October 2026

What is CVE-2026-66567?

An unauthenticated PHP Object Injection vulnerability exists in the Anesta WordPress theme versions up to 1.5.3. This security flaw allows attackers to exploit poorly validated or sanitized data, leading to potential unauthorized actions or access within the application. Users are advised to update their installations to mitigate risks associated with this vulnerability.

Affected Version(s)

Anesta <= 1.5.3

References

https://patchstack.com/database/wordpress/theme/anesta/vu...
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

João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
.