Zabbix Vulnerabilities and Affected Products

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Vulnerabilities associated with Zabbix.

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Showing 25 vulnerabilities on this page for Zabbix

Signals CISA KEV Ransomware Nuclei
VulnerabilityTitle and contextCVSSEPSSPoCsSignals

Stored XSS vulnerability in the Item history/Plain text widget

The Item history widget (in Zabbix 7.0+) or the Plain text widget (in Zabbix 6.0) can execute injected JavaScript when HTML display is enabled. This can allow an attacker to perform unauthorized actions depending on which user opens a dashboard containing these widgets. The malicious JavaScript would have to come from a monitored host controlled by the attacker. Note: the Item history widget is a replacement for the Plain text widget since Zabbix 7.0.

CWE-79May 6, 2026
CVSS7.3v4.0EPSS0.285%PoCs0SignalsSTIX

Agent 2 Oracle plugin TNS connection string injection via the 'service' parameter

A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.

CWE-522May 6, 2026
CVSS5.1v4.0EPSS0.229%PoCs0SignalsSTIX

Stored XSS vulnerability in Host navigator widget maintenance tooltip

An authenticated (non-super) administrator can create a maintenance period with a JavaScript payload that is executed by any user that opens tooltip for that maintenance period in the Host navigator widget. This can allow the attacker to perform unauthorized actions depending on which user opens the tooltip.

CWE-79May 6, 2026
CVSS7.3v4.0EPSS0.285%PoCs0SignalsSTIX

Agent 2 Docker plugin arbitrary file read via Docker API injection

Zabbix Agent 2 Docker plugin does not properly sanitize the 'docker.container_info' parameters when forwarding them to the Docker daemon. An attacker capable of invoking Agent 2 can read arbitrary files from running Docker containers by injecting them via the Docker archive API.

CWE-88Mar 24, 2026
CVSS6.1v4.0EPSS0.251%PoCs0SignalsSTIX

Unauthenticated arbitrary PHP class instantiation

An unauthenticated attacker can exploit the Frontend 'validate' action to blindly instantiate arbitrary PHP classes. The impact depends on environment setup but appears limited at this time.

CWE-470Mar 24, 2026
CVSS6.9v4.0EPSS0.285%PoCs0SignalsSTIX

Blind, read-only SQL injection in Zabbix API via sortfield parameter

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.

CWE-89Mar 24, 2026
CVSS8.7v4.0EPSS0.24%PoCs1SignalsSTIX

Host and event action script regex validation can be bypassed in certain situations, leading to potential command injection

Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.

CWE-78Mar 24, 2026
CVSS7.7v4.0EPSS0.248%PoCs0SignalsSTIX

Insufficient isolation of JavaScript (Duktape) execution context on Zabbix Server

For performance reasons Zabbix Server/Proxy reuses JavaScript (Duktape) contexts (used in script items, JavaScript reprocessing, Webhooks). This can lead to confidentiality loss where a regular (non-super) Zabbix administrator leaks data for hosts they do not have access to. A fix has been released that makes the built in Zabbix JavaScript objects read-only, but please be advised that usage of global JavaScript variables is not recommended because their content could be leaked. More information …

CWE-488Mar 24, 2026
CVSS7.1v4.0EPSS0.154%PoCs0SignalsSTIX

Unauthorized host creation via configuration.import API by low-privilege user with write permissions

An authenticated Zabbix user (User role) with template/host write permissions is able to create objects via the configuration.import API. This can lead to confidentiality loss by creating unauthorized hosts. Note that the User role is normally not sufficient to create and edit templates/hosts even with write permissions.

CWE-863Mar 6, 2026
CVSS5.1v4.0EPSS0.255%PoCs0SignalsSTIX

Frontend DoS vulnerability due to asymmetric resource consumption

An authenticated Zabbix user (including Guest) is able to cause disproportionate CPU load on the webserver by sending specially crafted parameters to /imgstore.php, leading to potential denial of service.

CWE-405Dec 1, 2025
CVSS6.0v4.0EPSS0.332%PoCs0SignalsSTIX

Agent builds for AIX vulnerable to library loading hijacking

Library loading on AIX Zabbix Agent builds can be hijacked by local users with write access to the /home/cecuser directory.

CWE-426Dec 1, 2025
CVSS5.8v4.0EPSS0.115%PoCs0SignalsSTIX

Frontend arbitrary file read in oauth.authorize action

An authenticated Zabbix Super Admin can exploit the oauth.authorize action to read arbitrary files from the webserver leading to potential confidentiality loss.

CWE-918Dec 1, 2025
CVSS6.8v4.0EPSS0.281%PoCs0SignalsSTIX

Insufficient permission check for the problem.view.refresh action

A regular Zabbix user with no permission to the Monitoring -> Problems view is still able to call the problem.view.refresh action and therefore still retrieve a list of active problems.

CWE-863Oct 3, 2025
CVSS5.1v4.0EPSS0.274%PoCs0SignalsSTIX

DLL injection in Zabbix Agent and Agent 2 via OpenSSL configuration

In Zabbix Agent and Agent 2 on Windows, the OpenSSL configuration file is loaded from a path writable by low-privileged users, allowing malicious modification and potential local privilege escalation by injecting a DLL.

CWE-427Oct 3, 2025
CVSS7.3v4.0EPSS0.325%PoCs1SignalsSTIX

User information disclosure via api_jsonrpc.php on method user.get with param search

A regular Zabbix user can search other users in their user group via Zabbix API by select fields the user does not have access to view. This allows data-mining some field values the user does not have access to.

CWE-863Oct 3, 2025
CVSS2.1v4.0EPSS0.347%PoCs0SignalsSTIX

LDAP 'Bind password' field value can be leaked by a Zabbix Super Admin

The LDAP 'Bind password' value cannot be read after saving, but a Super Admin account can leak it by changing LDAP 'Host' to a rogue LDAP server. To mitigate this, the 'Bind password' value is now reset on 'Host' change.

CWE-522Oct 3, 2025
CVSS4.3v4.0EPSS0.387%PoCs0SignalsSTIX

Secondary-order SQL injection in Zabbix Server when deleting an autoregistered host

A Zabbix adminitrator can inject arbitrary SQL during the autoremoval of hosts by inserting malicious SQL in the 'Visible name' field.

CWE-89Sep 12, 2025
CVSS7.5v4.0EPSS1.27%PoCs0SignalsSTIX

API hostprototype.get lists data to users with insufficient authorization.

Due to a bug in Zabbix API, the hostprototype.get method lists all host prototypes to users that do not have any user groups assigned to them.

CWE-284Sep 12, 2025
CVSS2.1v4.0EPSS0.18%PoCs0SignalsSTIX

Zabbix Agent 2 smartctl plugin argument injection in Zabbix 6.0 and later.

Zabbix Agent 2 smartctl plugin does not properly sanitize smart.disk.get parameters, allowing an attacker to inject unexpected arguments into the smartctl command. This can be used to leak the NTLMv2 hash from a Windows system.

CWE-77Sep 12, 2025
CVSS5.7v4.0EPSS0.17%PoCs0SignalsSTIX

Zabbix Agent 2 smartctl plugin RCE vulnerability in Zabbix 5.0.

Zabbix Agent 2 smartctl plugin does not properly sanitize smart.disk.get parameters, allowing an attacker to inject unexpected arguments into the smartctl command. In Zabbix 5.0 this allows for remote code execution.

CWE-78Sep 12, 2025
CVSS7.3v4.0EPSS0.312%PoCs0SignalsSTIX

DoS vulnerability due to uncontrolled resource exhaustion

Zabbix server is vulnerable to a DoS vulnerability due to uncontrolled resource exhaustion. An attacker can send specially crafted requests to the server, which will cause the server to allocate an excessive amount of memory and perform CPU-intensive decompression operations, ultimately leading to a service crash.

CWE-770Apr 2, 2025
CVSS6.0v4.0EPSS0.348%PoCs0SignalsSTIX

Reflected XSS vulnerability in /zabbix.php?action=export.valuemaps

The endpoint /zabbix.php?action=export.valuemaps suffers from a Cross-Site Scripting vulnerability via the backurl parameter. This is caused by the reflection of user-supplied data without appropriate HTML escaping or output encoding. As a result, a JavaScript payload may be injected into the above endpoint causing it to be executed within the context of the victim's browser.

CWE-79Apr 2, 2025
CVSS7.5v4.0EPSS0.348%PoCs0SignalsSTIX

Excessive information returned by user.get

Zabbix API user.get returns all users that share common group with the calling user. This includes media and other information, such as login attempts, etc.

CWE-359Apr 2, 2025
CVSS2.1v4.0EPSS0.293%PoCs0SignalsSTIX

User enumeration via timing attack in Zabbix web interface

Execution time for an unsuccessful login differs when using a non-existing username compared to using an existing one.

CWE-208Apr 2, 2025
CVSS2.3v4.0EPSS0.328%PoCs0SignalsSTIX

SQL injection in Zabbix API

A low privilege (regular) Zabbix user with API access can use SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL commands via the groupBy parameter.

CWE-89Apr 2, 2025
CVSS8.6v4.0EPSS26.5%PoCs0SignalsSTIX