CVE-2026-23921
Blind SQL Injection in Zabbix API Enables Data Exfiltration
Publication date: 2026-03-24
Last updated on: 2026-03-24
Assigner: Zabbix
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| zabbix | zabbix | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-89 | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
Can you explain this vulnerability to me?
This vulnerability is a blind SQL injection in Zabbix's API service, specifically in the file include/classes/api/CApiService.php. A low privilege user with API access can manipulate the sortfield parameter to execute arbitrary SQL select queries on the database.
Although the results of these queries are not returned directly, an attacker can use time-based techniques to extract sensitive data from the database.
How can this vulnerability impact me? :
The vulnerability can lead to the disclosure of sensitive information such as session identifiers.
This may allow an attacker to compromise administrator accounts, potentially gaining full control over the Zabbix system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know