CVE-2025-49643

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.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend Zabbix

CVE-2025-27232

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.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend Zabbix

CVE-2024-42330

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 allows to create internal strings that can be used to access hidden properties of objects.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend Zabbix

CVE-2023-29457

Insufficient validation of Action form input fields

Reflected XSS attacks, occur when a malicious script is reflected off a web application to the victim's browser. The script can be activated through Action form fields, which can be sent as request to a website with a vulnerability that enables execution of malicious scripts.

CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend

CVE-2023-29456

Inefficient URL schema validation

URL validation scheme receives input from a user and then parses it to identify its various components. The validation scheme can ensure that all URL components comply with internet standards.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend

CVE-2023-29455

Reflected XSS in several fields of graph form

Reflected XSS attacks, also known as non-persistent attacks, occur when a malicious script is reflected off a web application to the victim's browser. The script is activated through a link, which sends a request to a website with a vulnerability that enables execution of malicious scripts.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend

CVE-2023-29454

Persistent XSS in the user form

Stored or persistent cross-site scripting (XSS) is a type of XSS where the attacker first sends the payload to the web application, then the application saves the payload (e.g., in a database or server-side text files), and finally, the application unintentionally executes the payload for every victim visiting its web pages.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend

CVE-2022-43515

X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode

Zabbix Frontend provides a feature that allows admins to maintain the installation and ensure that only certain IP addresses can access it. In this way, any user will not be able to access the Zabbix Frontend while it is being maintained and possible sensitive data will be prevented from being disclosed. An attacker can bypass this protection and access the instance using IP address not listed in the defined range.

CVSS 3.1 · 5.3 Medium EPSS 1.3% KEV · Not listed

Vendors

Zabbix

Products

Frontend

CVE-2022-24919

Reflected XSS in graph configuration window of Zabbix Frontend

An authenticated user can create a link with reflected Javascript code inside it for 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. Malicious code has access to all the same objects as the rest of the web page and can make arbitrary modifications to the contents of the page being displayed to a victim during social engineering attacks.

CVSS 3.1 · 3.7 Low EPSS 1.2% KEV · Not listed

Vendors

Debian Fedoraproject Zabbix

Products

Debian Linux Fedora Frontend

CVE-2022-24918

Reflected XSS in item configuration window of Zabbix Frontend

An authenticated user can create a link with reflected Javascript code inside it for items’ 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. Malicious code has access to all the same objects as the rest of the web page and can make arbitrary modifications to the contents of the page being displayed to a victim during social engineering attacks.

CVSS 3.1 · 3.7 Low EPSS 1.2% KEV · Not listed

Vendors

Fedoraproject Zabbix

Products

Fedora Frontend

CVE-2022-24917

Reflected XSS in service configuration window of Zabbix Frontend

An authenticated user can create a link with reflected Javascript code inside it for services’ 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. Malicious code has access to all the same objects as the rest of the web page and can make arbitrary modifications to the contents of the page being displayed to a victim during social engineering attacks.

CVSS 3.1 · 3.7 Low EPSS 1.2% KEV · Not listed

Vendors

Debian Fedoraproject Zabbix

Products

Debian Linux Fedora Frontend

CVE-2022-24349

Reflected XSS in action configuration window of Zabbix Frontend

An authenticated user can create a link with reflected XSS payload for actions’ pages, and send it to other users. Malicious code has access to all the same objects as the rest of the web page and can make arbitrary modifications to the contents of the page being displayed to a victim. This attack can be implemented with the help of social engineering and expiration of a number of factors - an attacker should have authorized access to the Zabbix Frontend and allowed network connection between a malicious server and victim’s computer, understand attacked infrastructure, be recognized by the victim as a trustee and use trusted communication channel.

CVSS 3.1 · 4.6 Medium EPSS 1.2% KEV · Not listed

Vendors

Debian Fedoraproject Zabbix

Products

Debian Linux Fedora Frontend

CVE-2023-32725

Leak of zbx_session cookie when using a scheduled report that includes a dashboard with a URL widget.

The website configured in the URL widget will receive a session cookie when testing or executing scheduled reports. The received session cookie can then be used to access the frontend as the particular user.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend Zabbix Server

CVE-2023-30958

DOM XSS in Developer mode dashboard via redirect GET parameter

A security defect was identified in Foundry Frontend that enabled users to potentially conduct DOM XSS attacks if Foundry's CSP were to be bypassed. This defect was resolved with the release of Foundry Frontend 6.225.0.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Zabbix

Products

Frontend