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

Quick assessment

Affected
Arraytics Booktics
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Booktics是WordPress基金会的一个WordPress预约和服务预订插件。 Arraytics Booktics 1.0.21及之前版本存在反序列化注入漏洞，该漏洞源于未经验证的PHP对象注入，可能导致未验证的攻击者远程注入恶意对象，从而造成机密性、完整性和可用性高风险。

CVSS 9.8 · Critical EPSS 0.56% · P45

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
Arraytics Booktics n/a≤ 1.0.21 affected
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I. Basic Information for CVE-2026-57621

Vulnerability Information
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Vulnerability Title
WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated PHP Object Injection in Booktics <= 1.0.21 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Booktics 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Booktics是WordPress基金会的一个WordPress预约和服务预订插件。 Arraytics Booktics 1.0.21及之前版本存在反序列化注入漏洞，该漏洞源于未经验证的PHP对象注入，可能导致未验证的攻击者远程注入恶意对象，从而造成机密性、完整性和可用性高风险。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Arraytics Booktics n/a ~ 1.0.21 -

II. Public POCs for CVE-2026-57621

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III. Intelligence Information for CVE-2026-57621

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IV. Related Vulnerabilities

Same product: Booktics
Same vendor: Arraytics
Same weakness: CWE-502

V. Comments for CVE-2026-57621

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