CVE-2026-30807: Artica Pandora FMS CSRF Vulnerability

CVE-2026-30807 Overview

CVE-2026-30807 is a Cross-Site Request Forgery (CSRF) vulnerability affecting Artica Pandora FMS, an enterprise monitoring platform. The flaw allows an attacker to perform unauthorized actions on behalf of an authenticated user by tricking them into visiting a crafted web page. The issue affects Pandora FMS versions 777 through 800 and is tracked under CWE-352.

Critical Impact
An attacker who lures an authenticated Pandora FMS user to a malicious page can trigger state-changing requests in the monitoring console, potentially altering configurations or executing privileged operations under the victim's session.

Affected Products

Artica Pandora FMS version 777
Artica Pandora FMS versions between 777 and 800
Artica Pandora FMS version 800

Discovery Timeline

2026-05-12 - CVE-2026-30807 published to NVD
2026-05-13 - Last updated in NVD database

Technical Details for CVE-2026-30807

Vulnerability Analysis

The vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the Pandora FMS web interface. The application processes state-changing HTTP requests without verifying that the request originated from a legitimate user-initiated action within the application. An attacker can craft a malicious web page that issues forged requests to a Pandora FMS instance. When an authenticated administrator or operator visits the page, the browser automatically attaches session cookies, and the server accepts the action as authentic.

The CVSS 4.0 vector indicates that user interaction is required and that exploitation can lead to a high impact on integrity. The attack is network-reachable and requires no privileges on the target system. Successful exploitation can modify monitoring configurations, agents, alerts, or user data within the application.

Root Cause

The root cause is missing or insufficient anti-CSRF protection on sensitive endpoints. Pandora FMS does not consistently validate a unique per-session or per-request token, nor does it strictly enforce SameSite cookie attributes or Origin/Referer header checks for state-changing operations. This omission allows cross-origin requests carrying valid authentication cookies to succeed.

Attack Vector

Exploitation requires an authenticated victim to visit attacker-controlled content. The attacker hosts a page containing an auto-submitting HTML form, an <img> tag, or JavaScript that issues a request to a known Pandora FMS endpoint. Because the browser includes session cookies for the Pandora FMS domain, the server executes the request with the victim's privileges. The attacker does not see the response but can chain state changes such as creating users, modifying alerts, or disabling monitoring components.

The vulnerability manifests through standard CSRF mechanics, so no proof-of-concept code is required to understand the exploitation flow. Refer to the Pandora FMS Vulnerabilities Overview for vendor technical details.

Detection Methods for CVE-2026-30807

Indicators of Compromise

HTTP requests to Pandora FMS endpoints containing Referer or Origin headers pointing to external, untrusted domains.
Unexpected administrative actions such as user creation, role changes, or alert modifications occurring shortly after a user clicked an external link.
Web server access logs showing POST requests to sensitive Pandora FMS URLs without matching prior GET navigation from within the application.

Detection Strategies

Inspect web application firewall (WAF) and reverse proxy logs for requests to Pandora FMS where Origin or Referer headers do not match the Pandora FMS hostname.
Audit Pandora FMS application logs for configuration changes correlated with user browsing activity to external sites.
Monitor for anomalous patterns of state-changing requests originating from a single authenticated user session in a short timeframe.

Monitoring Recommendations

Forward Pandora FMS audit logs and web server access logs to a centralized SIEM for correlation with browser proxy or endpoint telemetry.
Alert on administrative actions performed without a corresponding interactive session pattern.
Track outbound user traffic to newly registered or low-reputation domains that may host CSRF payloads targeting internal management consoles.

How to Mitigate CVE-2026-30807

Immediate Actions Required

Identify all Pandora FMS instances running versions 777 through 800 and prioritize them for patching.
Restrict access to the Pandora FMS console to trusted management networks or VPN ranges to reduce exposure.
Require Pandora FMS administrators to use dedicated browsers or browser profiles that are not used for general internet browsing.

Patch Information

Apply the security updates published by the vendor. Consult the Pandora FMS Vulnerabilities Overview for the fixed version corresponding to CVE-2026-30807 and follow the documented upgrade procedure. Validate the upgrade in a staging environment before deploying to production monitoring infrastructure.

Workarounds

Configure the reverse proxy or WAF in front of Pandora FMS to reject state-changing requests whose Origin or Referer header does not match the application's hostname.
Set session cookies for Pandora FMS to SameSite=Strict where the deployment topology allows, reducing the browser's willingness to send cookies on cross-site requests.
Enforce shorter session timeouts so that authenticated sessions are less likely to be active when users browse external content.

bash

# Example NGINX reverse proxy rule rejecting cross-origin state-changing requests
location /pandora_console/ {
    if ($request_method ~ ^(POST|PUT|DELETE|PATCH)$) {
        set $csrf_block "0";
        if ($http_origin !~* "^https://pandora\.example\.com$") {
            set $csrf_block "1";
        }
        if ($csrf_block = "1") {
            return 403;
        }
    }
    proxy_pass http://pandora_backend;
}