CVE-2026-23923— Unauthenticated arbitrary PHP class instantiation
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I. Basic Information for CVE-2026-23923
Vulnerability Information
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Vulnerability Title
Unauthenticated arbitrary PHP class instantiation
Source: NVD (National Vulnerability Database)
Vulnerability Description
An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix存在安全漏洞，该漏洞源于validate操作可实例化任意PHP类，具体影响取决于环境配置。
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
II. Public POCs for CVE-2026-23923
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Zabbix · 2026-03-24 · 5 CVEs total
| CVE-2026-23919 | Insufficient isolation of JavaScript (Duktape) execution context on Zabbix Server | |
| CVE-2026-23924 | Agent 2 Docker plugin arbitrary file read via Docker API injection | |
| CVE-2026-23920 | Host and event action script regex validation can be bypassed in certain situations, leadi | |
| CVE-2026-23921 | Blind, read-only SQL injection in Zabbix API via sortfield parameter |
IV. Related Vulnerabilities
Same product: Zabbix
- CVE-2026-23928
Stored XSS vulnerability in the Item history/Plain text widg - CVE-2026-23927
Agent 2 Oracle plugin TNS connection string injection via th - CVE-2026-23926
Stored XSS vulnerability in Host navigator widget maintenanc - CVE-2026-23924
Agent 2 Docker plugin arbitrary file read via Docker API inj - CVE-2026-23921
Blind, read-only SQL injection in Zabbix API via sortfield p
Same vendor: Zabbix
- CVE-2026-23928
Stored XSS vulnerability in the Item history/Plain text widg - CVE-2026-23927
Agent 2 Oracle plugin TNS connection string injection via th - CVE-2026-23926
Stored XSS vulnerability in Host navigator widget maintenanc - CVE-2026-23924
Agent 2 Docker plugin arbitrary file read via Docker API inj - CVE-2026-23921
Blind, read-only SQL injection in Zabbix API via sortfield p
Same weakness: CWE-470
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PraisonAI has unsafe tool resolution in `ToolExecutionMixin. - CVE-2026-42027
Apache OpenNLP: Arbitrary Class Instantiation via Model Mani - CVE-2026-41175
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Smart VPN 1.1.3.0 Denial of Service via Search
V. Comments for CVE-2026-23923
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