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OpenAdvisories

Vendor

Zabbix

100 known vulnerabilities.

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  • High 7.7

    Hardcoded session key in Zabbix 7.4

    In Zabbix 7.4 the cryptographic key used for signing Frontend sessions has been erroneously written to the database seed. Currently the only known exploitation scenario is for deployments that utilize both - SAML authentication and guest users. In such cases …

  • High 8.5

    Prototype pollution leading to stored XSS

    Prototype pollution vulnerability in searchParamsToObject() is leading to a persistent XSS in Maps. URL parameter processing was not filtering dangerous properties like __proto__, combined with jQuery's unsafe element creation that traversed the prototype cha…

  • High 7.3

    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 the…

  • High 7.3

    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 …

  • High 8.7
    CVE-2026-23921 Public exploit

    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 …

  • High 7.7

    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 …

  • High 7.1

    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…

  • High 7.3
    CVE-2025-27237 Public exploit

    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.

  • High 7.5

    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.

  • High 7.3

    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.

  • High 7.5

    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 JavaScrip…

  • High 8.6
    CVE-2024-36465 EPSS 40%

    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.

  • High 8.8

    Unauthenticated Zabbix frontend takeover when SSO is being used

    A bug in the code allows an attacker to sign a forged zbx_session cookie, which then allows them to sign in with admin permissions.

  • High 7.5

    Authentication privilege escalation via user groups due to missing authorization checks

    An authenticated user with API access (e.g.: user with default User role), more specifically a user with access to the user.update API endpoint is enough to be able to add themselves to any group (e.g.: Zabbix Administrators), except to groups that are disabl…

  • High 7.5

    Allocation of resources without limits or throttling (uncontrolled resource consumption)

    Uncontrolled resource consumption refers to a software vulnerability where a attacker or system uses excessive resources, such as CPU, memory, or network bandwidth, without proper limitations or controls. This can cause a denial-of-service (DoS) attack or deg…

  • High 8.1

    Front-end audit log shows passwords in plaintext

    The front-end audit log allows viewing of unprotected plaintext passwords, where the passwords are displayed in plain text.

  • High 8.5

    Inefficient permission check in class CControllerAuthenticationUpdate

    Request to LDAP is sent before user permissions are checked.

  • High 7.6

    Stored XSS in Maps element

    A stored XSS has been found in the Zabbix web application in the Maps element if a URL field is set with spaces before URL.

  • High 8.5

    Unauthorized limited filesystem access from preprocessing

    JavaScript pre-processing can be used by the attacker to gain access to the file system (read-only access on behalf of user "zabbix") on the Zabbix Server or Zabbix Proxy, potentially leading to unauthorized access to sensitive data.