CVE-2026-23921 — Zabbix Zabbix: A low privilege Zabbix user with API access can exploit a blind SQL injection
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. CVSSv3.1 8.8 (HIGH) · EPSS 86th percentile