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CVE-2026-23921 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Zabbix
CVSS-B 8.7 HIGH
Vector:  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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://support.zabbix.com/browse/ZBX-27640 Zabbix

Weakness Enumeration

CWE-ID CWE Name Source
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Zabbix  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23921
NVD Published Date:
03/24/2026
NVD Last Modified:
03/24/2026
Source:
Zabbix