CVE-2026-57621 CRITICAL

CVE-2026-57621: WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability

Vendor Arraytics
Product Booktics
Weakness CWE-502 · Unsafe deserialization
Published July 2, 2026
Last update July 2, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Booktics versions up to 1.0.21 contain a deserialization vulnerability that allows unauthenticated attackers to run arbitrary code on the server. The flaw exists in how the application processes untrusted serialized data without proper validation. No user interaction is required to exploit this issue. Update to version 1.0.22 or later immediately.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the server and take complete control of the site.

Potential impact on your site

04Site Impact

Complete compromise of the site, including data theft, malware injection, and service disruption.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 2, 2026 CVE published