CVE-2026-23921
HIGH EPSS 15.0%
Published Mar 24, 20263mo ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
Published Mar 24, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
15.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-89 SQL Injection Injection
References 1
- support.zabbix.com https://support.zabbix.com/browse/ZBX-27640
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.