CVE-2026-23921

EUVD-2026-14955
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.
SQL Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ZabbixCNA
8.7 HIGH
NETWORK
LOW
LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
zabbixzabbix
7.0.0 ≤
𝑥
≤ 7.0.21
CNA
zabbixzabbix
7.2.0 ≤
𝑥
≤ 7.2.14
CNA
zabbixzabbix
7.4.0 ≤
𝑥
≤ 7.4.5
CNA