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I. Basic Information for CVE-2026-23921
Vulnerability Information

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Vulnerability Title
Blind, read-only SQL injection in Zabbix API via sortfield parameter
Source: NVD (National Vulnerability Database)
Vulnerability Description
A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can exfiltrate arbitrary database data through time-based techniques, potentially leading to session identifier disclosure and administrator account compromise.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
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sortfield参数存在SQL注入,可能导致低权限用户通过基于时间的技术泄露任意数据库数据。
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
VendorProductAffected VersionsCPESubscribe
ZabbixZabbix 7.0.0 ~ 7.0.21 -
II. Public POCs for CVE-2026-23921
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III. Intelligence Information for CVE-2026-23921
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IV. Related Vulnerabilities
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