128 results · Feed
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Medium 5.3
SNMP trap injection in zabbix_trap_receiver.pl
The Perl SNMP trap receiver script shipped with Zabbix does not properly neutralize the ZBXTRAP record delimiter in trap content. This means someone able to send SNMP traps can inject a record targeting another host, resulting in a loss of integrity.
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Medium 6.9
Active agent heartbeat missing TLS check
Zabbix Server and Proxy accept the active agent heartbeat message regardless of the configured PSK or certificate authentication. This means someone with access to the Zabbix trapper port can report an arbitrary host using an active agent as available, result…
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Medium 5.1
Hidden host credentials inferable via multiselect.get filtering
Host search in Frontend allows filtering by fields that are not displayed, including stored IPMI and PSK credentials. A user with read access can guess a credential and see from the search result whether the guess was right, letting them uncover it.
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Low 2.3
Server DoS via binary items
The Zabbix Server/Proxy has a vulnerability where binary items can crash the Server/Proxy on certain NULL byte input leading to potential loss of availability. This only affects deployments where MySQL/MariaDB database is used as the Zabbix database.
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Medium 6.9
JavaScript preprocessing memory disclosure
The JavaScript preprocessing (Duktape) engine on Zabbix server has a vulnerability where a limited administrator is able to read raw heap data potentially resulting in leaked data from other running preprocessors not available to said administrator.
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Low 2.1
Server DoS via JavaScript preprocessing or script items
An authenticated administrator is able to crash Zabbix server or proxy by creating specifically crafted preprocessing/script item JavaScript scripts, leading to potential denial of service.
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Medium 6.0
Host PSK extraction in Zabbix API
The Zabbix API host.get action can be exploited by authenticated users to extract a host's PSK key leading to potential loss of data integrity.
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Medium 6.8
Use-after-free read in script item/preprocessing HttpRequest body
A Zabbix administrator is able to read out of bounds memory by utilizing a flaw in script item/preprocessing (JavaScript) HttpRequest logic, leading to potential confidentiality loss.
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Medium 5.3
Frontend DoS via the popup.testtriggerexpr action
An unauthenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend popup.testtriggerexpr action, leading to potential denial of service.
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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…
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Medium 6.9
API and Frontend login lockout race condition
Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not properly counted towards the block counter if sent simultaneously, potentially allowing for more password guesses than intended.
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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…
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Medium 5.1
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.
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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 …
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Medium 6.1
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…
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High 8.7CVE-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 …
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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 …
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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…
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Medium 5.1
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 …
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Medium 6.0
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.
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Medium 5.1
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.
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Low 2.1
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.
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Medium 4.3
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.
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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.
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Low 2.1
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.
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Medium 5.7
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.
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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.
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Medium 6.0
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 decompre…
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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…
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Low 2.1
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.
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Low 2.3
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.
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High 8.6CVE-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.
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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.
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Low 2.7
Media Types: Office365, SMTP passwords are unencrypted and visible in plaintext when exported
When exporting media types, the password is exported in the YAML in plain text. This appears to be a best practices type issue and may have no actual impact. The user would need to have permissions to access the media types and therefore would be expected to …
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Low 2.7
Heap buffer over-read
The researcher is showing that it is possible to leak a small amount of Zabbix Server memory using an out of bounds read in src/libs/zbxmedia/email.c
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Low 3.7
New line injection in Zabbix SNMP traps
The researcher is showing that due to the way the SNMP trap log is parsed, an attacker can craft an SNMP trap with additional lines of information and have forged data show in the Zabbix UI. This attack requires SNMP auth to be off and/or the attacker to know…
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Low 3.3
Use after free in browser_push_error
In the src/libs/zbxembed/browser.c file, the es_browser_ctor method retrieves a heap pointer from the Duktape JavaScript engine. This heap pointer is subsequently utilized by the browser_push_error method in the src/libs/zbxembed/browser_error.c file. A use-a…
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Critical 9.1
JS - Internal strings in HTTP headers
The HttpRequest object allows to get the HTTP headers from the server's response after sending the request. The problem is that the returned strings are created directly from the data returned by the server and are not correctly encoded for JavaScript. This a…
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Low 3.3
JS - Crash on unexpected HTTP server response
The webdriver for the Browser object expects an error object to be initialized when the webdriver_session_query function fails. But this function can fail for various reasons without an error description and then the wd->error will be NULL and trying to read …
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Low 3.3
JS - Crash on empty HTTP server response
When the webdriver for the Browser object downloads data from a HTTP server, the data pointer is set to NULL and is allocated only in curl_write_cb when receiving data. If the server's response is an empty document, then wd->data in the code below will remain…