CVE-2024-2730: Mautic Information Disclosure Vulnerability

CVE-2024-2730 Overview

CVE-2024-2730 is an information disclosure vulnerability in Mautic, an open-source marketing automation platform. The flaw stems from predictable page indices used for unpublished landing pages. Unauthenticated attackers can access unpublished landing page content through public preview URLs by enumerating sequential identifiers. This exposure can leak sensitive marketing content, draft campaigns, or confidential data staged for future release. No patch was available at the time of CVE publication.

Critical Impact
Unauthenticated remote attackers can enumerate predictable preview URLs to access unpublished landing pages and extract sensitive content without authentication.

Affected Products

Mautic marketing automation platform
Unpublished landing page preview functionality
Installations exposing preview URLs to the public internet

Discovery Timeline

2024-04-10 - CVE-2024-2730 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-2730

Vulnerability Analysis

The vulnerability is categorized as a security through obscurity weakness [CWE-425], often referred to as a forced browsing or direct request issue. Mautic generates landing page identifiers using sequential, predictable integers. Unpublished pages remain reachable through the preview URL route even when they are not marked public.

Because the preview endpoint does not enforce authentication or authorization checks, any unauthenticated user who guesses or enumerates a valid page index can retrieve the rendered content. The impact is limited to confidentiality: attackers cannot modify data or disrupt service through this flaw alone.

Marketing teams frequently stage sensitive content in unpublished pages, including unreleased product announcements, pricing information, promotional offers, and partner-specific landing pages. Exposure of this content can undermine business operations and competitive positioning.

Root Cause

The root cause is the combination of two design decisions. First, Mautic assigns incrementing numeric indices to landing pages. Second, the preview URL route serves page content without verifying the requester's session, role, or publication state. Together these allow unauthenticated enumeration of all draft content.

Attack Vector

Exploitation requires only network access to the Mautic instance. An attacker iterates numeric page identifiers against the preview URL endpoint and parses responses to identify unpublished content. No credentials, user interaction, or elevated privileges are required.

The vulnerability mechanism is described in the public Huntr bug bounty disclosure. See the Huntr Bug Bounty Report for the submitted proof of concept and reproduction steps.

Detection Methods for CVE-2024-2730

Indicators of Compromise

Sequential HTTP GET requests to Mautic landing page preview URLs with incrementing numeric identifiers in short time windows
Unauthenticated requests to preview endpoints from a single source IP or user agent
Web server access logs showing enumeration patterns against landing page preview paths

Detection Strategies

Review web server and application logs for anomalous access patterns against the landing page preview route
Correlate request bursts to preview URLs with unauthenticated sessions and non-browser user agents
Alert on high rates of 200 OK responses to sequential numeric path parameters on Mautic hosts

Monitoring Recommendations

Enable detailed access logging on the Mautic web tier and forward logs to a centralized analytics platform
Deploy a web application firewall rule to rate-limit requests to the preview URL path
Track baseline request volumes to preview endpoints and alert on statistical deviations

How to Mitigate CVE-2024-2730

Immediate Actions Required

Restrict access to Mautic landing page preview URLs to authenticated administrative users through reverse proxy or WAF rules
Block external access to the preview endpoint and allow only internal IP ranges used by content authors
Audit unpublished landing pages for sensitive content and remove or sanitize drafts that must not leak

Patch Information

At the time of CVE publication, no official patch was available from the Mautic project. Monitor the Huntr Bug Bounty Report and the Mautic project repository for upstream fixes. Apply any security release that enforces authentication on the preview route or replaces sequential identifiers with unguessable tokens.

Workarounds

Place the Mautic preview endpoint behind an authenticating reverse proxy such as nginx or Apache with HTTP basic authentication
Deploy a WAF rule that denies unauthenticated requests to the landing page preview URL path
Avoid staging confidential content in unpublished Mautic pages until a vendor patch is applied

bash

# Example nginx configuration restricting preview URL access
location ~ ^/page/preview/ {
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
    auth_basic "Mautic Preview";
    auth_basic_user_file /etc/nginx/.htpasswd;
    proxy_pass http://mautic_backend;
}