Unauthenticated PHP Object Injection in Booktics by Patchstack
CVE-2026-57621

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Booktics
Vendor
CVE Published:
2 July 2026

What is CVE-2026-57621?

The vulnerability in Booktics prior to version 1.0.21 allows for unauthenticated PHP Object Injection, potentially leading to remote code execution. If exploited, an attacker could gain unauthorized access and manipulate objects within the application, posing significant security risks. It is crucial for users to upgrade to the latest version to safeguard their systems against such threats.

Affected Version(s)

Booktics <= 1.0.21

References

https://patchstack.com/database/wordpress/plugin/booktics...
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

hhhai | Patchstack Bug Bounty Program
.