A non-admin user account on the Zabbix frontend with the default User role, or with any other role that gives API access can exploit this vulnerability. An SQLi exists in the CUser class in the addRelatedObjects function, this function is being called from the CUser.get function which is available for every user who has API access.

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 degrade the performance of the affected system.

A non-admin user can change or remove important features within the Zabbix Agent application, thus impacting the integrity and availability of the application.

Memory pointer is in a property of the Ducktape object. This leads to multiple vulnerabilities related to direct memory access and manipulation.

Request to LDAP is sent before user permissions are checked.

The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files via zbxjsonopen.

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.

Duktape is an 3rd-party embeddable JavaScript engine, with a focus on portability and compact footprint. When adding too many values in valstack JavaScript will crash. This issue occurs due to bug in Duktape 2.6 which is an 3rd-party solution that we use.

Currently, geomap configuration (Administration -> General -> Geographical maps) allows using HTML in the field “Attribution text” when selected “Other” Tile provider.

Specially crafted string can cause a buffer overrun in the JSON parser library leading to a crash of the Zabbix Server or a Zabbix Proxy.

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.

JavaScript preprocessing, webhooks and global scripts can cause uncontrolled CPU, memory, and disk I/O utilization. Preprocessing/webhook/global script configuration and testing are only available to Administrative roles (Admin and Superadmin). Administrative privileges should be typically granted to users who need to perform tasks that require more control over the system. The security risk is limited because not all users have this level of access.

A Firewall Rule which allows all incoming TCP connections to all programs from any source and to all ports is created in Windows Firewall after Zabbix agent installation (MSI)

An authenticated user can create a link with reflected Javascript code inside it for the graphs page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to predict.

An authenticated user can create a link with reflected Javascript code inside it for the discovery page and send it to other users. The payload can be executed only with a known CSRF token value of the victim, which is changed periodically and is difficult to predict.

Zabbix 4.0 LTS, 4.2, 4.4, and 5.0 LTS is vulnerable to Remote Code Execution (RCE). Any user with the "Zabbix Admin" role is able to run custom shell script on the application server in the context of the application user.

In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn't have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges.

A File Inclusion vulnerability exists in Zabbix 2.0.6 due to inadequate sanitization of request strings in CGI scripts, which could let a remote malicious user execute arbitrary code.

Zabbix 2.0.9 has an Arbitrary Command Execution Vulnerability

Multiple SQL injection vulnerabilities in Zabbix 1.8.x before 1.8.18rc1, 2.0.x before 2.0.9rc1, and 2.1.x before 2.1.7.

An issue was discovered in zabbix.php?action=dashboard.view&dashboardid=1 in Zabbix through 4.4. An attacker can bypass the login page and access the dashboard page, and then create a Dashboard, Report, Screen, or Map without any Username/Password (i.e., anonymously). All created elements (Dashboard/Report/Screen/Map) are accessible by other users and by an admin.

Multiple SQL injection vulnerabilities in chartbar.php in the frontend in Zabbix before 1.8.22, 2.0.x before 2.0.14, and 2.2.x before 2.2.8 allow remote attackers to execute arbitrary SQL commands via the (1) itemid or (2) periods parameter.

libs/zbxmedia/eztexting.c in Zabbix 1.8.x before 1.8.18rc1, 2.0.x before 2.0.8rc1, and 2.1.x before 2.1.2 does not properly set the CURLOPTSSLVERIFYHOST option for libcurl, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Zabbix 2.0.5 allows remote authenticated users to discover the LDAP bind password by leveraging management-console access and reading the ldapbindpassword value in the HTML source code.

Cross-site scripting (XSS) vulnerability in ZABBIX before 1.8.10 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to the profiler.

Multiple cross-site scripting (XSS) vulnerabilities in Zabbix before 1.8.10 allow remote attackers to inject arbitrary web script or HTML via the gname parameter (aka host groups name) to (1) hostgroups.php and (2) usergrps.php, the update action to (3) hosts.php and (4) scripts.php, and (5) maintenance.php.

SQL injection vulnerability in popup.php in Zabbix 1.8.3 and 1.8.4, and possibly other versions before 1.8.9, allows remote attackers to execute arbitrary SQL commands via the onlyhostid parameter.

popup.php in Zabbix before 1.8.7 allows remote attackers to read the contents of arbitrary database tables via a modified srctbl parameter.

Zabbix before 1.8.6 allows remote attackers to obtain sensitive information via an invalid srcfld2 parameter to popup.php, which reveals the installation path in an error message.

zabbixagentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.