# CVE-2026-57621: Arraytics Booktics PHP object injection

Source: https://junglewise.ai/threats/cve-2026-57621-arraytics-booktics-php-object-injection  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-02. Updated: 2026-07-02  
License: CC BY 4.0 with a link back

CVE-2026-57621 · Severity: critical · CVSS 9.8 · Published 2026-07-02

Booktics, a WordPress plugin used for booking and scheduling, contains a critical security flaw that allows unauthorized individuals to execute malicious code on the website. By sending specially crafted data to the site, an attacker could potentially take full control of the server, access sensitive customer information, or disrupt business operations. This vulnerability is highly dangerous because it requires no login credentials to exploit.

Technologies: [Arraytics Booktics](https://junglewise.ai/threats/technologies/booktics). Vendors: [Arraytics](https://junglewise.ai/threats/vendors/arraytics).

## Quick answers

**Is CVE-2026-57621 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57621 being exploited in the wild.

**How severe is CVE-2026-57621?** Critical severity, with a CVSS score of 9.8, published 2 July 2026.

**Which products and versions are affected?** Arraytics Booktics <= 1.0.21.

**Is there a fix for CVE-2026-57621?** A patch was published on 2026-07-02: NVD publication and patch availability confirmed for version 1.0.22 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-57621 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-57621?** Check whether you run Arraytics Booktics at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The Booktics plugin for WordPress is vulnerable to PHP Object Injection in versions up to and including 1.0.21 due to the unsafe deserialization of user-supplied input (CWE-502). An unauthenticated remote attacker can exploit this by submitting a specially crafted payload to a vulnerable endpoint. If a suitable Property-Oriented Programming (POP) chain is present in the environment, this can lead to remote code execution, SQL injection, or arbitrary file deletion. The issue is resolved in version 1.0.22.

## Affected products

- Arraytics Booktics <= 1.0.21

## Timeline

- 2026-06-01: disclosed: Reported by hhhai to Patchstack
- 2026-06-29: advisory: Patchstack advisory published
- 2026-07-02: patched: NVD publication and patch availability confirmed for version 1.0.22

## References

- [https://patchstack.com/database/wordpress/plugin/booktics/vulnerability/wordpress-booktics-plugin-1-0-21-php-object-injection-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/booktics/vulnerability/wordpress-booktics-plugin-1-0-21-php-object-injection-vulnerability?_s_id=cve)

## Related threats

- [Arraytics Booktics missing authorization in access control](https://junglewise.ai/threats/cve-2026-62122-missing-authorization-vulnerability-in-arraytics-booktics)
- [Arraytics Booktics broken access control in pages](https://junglewise.ai/threats/cve-2026-104674-missing-authorization-vulnerability-in-arraytics-booktics)
- [Arraytics Booktics broken access control vulnerability](https://junglewise.ai/threats/cve-2026-112829-missing-authorization-vulnerability-in-arraytics-booktics)
- [Arraytics Booktics DOM-based cross-site scripting](https://junglewise.ai/threats/cve-2026-109895-improper-neutralization-of-input-during-web-page-generation)
- [Arraytics Booktics SQL injection](https://junglewise.ai/threats/cve-2026-109894-improper-neutralization-of-special-elements-used-in-an-sql)