CVE-2026-10721— Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Concrete CMS | Concrete CMS | 5≤ 9.5.1 | affected |
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I. Basic Information for CVE-2026-10721
Vulnerability Information
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Vulnerability Title
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components
Source: NVD (National Vulnerability Database)
Vulnerability Description
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been placed in the database. Thanks XananasX7 for reporting.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Concrete CMS 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Concrete CMS是Concrete CMS开源的一个面向团队的开源内容管理系统。 Concrete CMS 9.5.2之前版本存在代码问题漏洞，该漏洞源于Permission、Cache和Search组件中unserialize调用，可能导致未经身份验证的攻击者触发任意PHP对象实例化。
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 |
|---|---|---|---|---|
| Concrete CMS | Concrete CMS | 5 ~ 9.5.1 | - |
II. Public POCs for CVE-2026-10721
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-10721 (1)
IV. Related Vulnerabilities
Same product: Concrete CMS
- CVE-2026-7888
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injecti - CVE-2026-8353
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XS - CVE-2026-8347
Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-a - CVE-2026-8340
Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backe - CVE-2026-8139
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via
Same vendor: Concrete CMS
- CVE-2026-7888
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injecti - CVE-2026-8353
Concrete CMS version 9.0 to 9.5.0 is vulnerable to Stored XS - CVE-2026-8347
Concrete CMS 9.5.0 and below is vulnerable to IDOR + wrong-a - CVE-2026-8340
Concrete CMS 9.5.0 and below is vulnerable to CSRF via Backe - CVE-2026-8139
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via
Same weakness: CWE-502
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WordPress Integration for Mailchimp and Contact Form 7, WPFo
V. Comments for CVE-2026-10721
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