CVE-2024-47055 is a security vulnerability identified in Mautic, an open-source marketing automation platform widely used for managing marketing campaigns and customer engagement. The vulnerability is categorized as CWE-862, indicating a Missing Authorization issue. Specifically, it affects the segment cloning functionality within Mautic's ListController.php component. The flaw allows any authenticated user to perform the cloneAction on segments without undergoing proper authorization checks. This means that users who have basic authentication but lack explicit permissions to create new segments can bypass these restrictions and clone existing segments. The vulnerability is an Insecure Direct Object Reference (IDOR) type, where the system fails to verify whether the user is authorized to perform the requested action on the targeted resource. The CVSS v3.1 base score is 4.3 (medium severity), with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L), no user interaction (UI:N), unchanged scope (S:U), no confidentiality impact (C:N), low integrity impact (I:L), and no availability impact (A:N). The vulnerability affects Mautic versions greater than 5.0.0. While no known exploits are currently reported in the wild, the flaw could be leveraged by malicious insiders or compromised accounts to manipulate marketing segments, potentially leading to unauthorized data manipulation or escalation of privileges within the marketing automation environment. The recommended mitigation is to update Mautic to a version that enforces proper authorization checks for the cloneAction, ensuring that only users with segment creation permissions can perform cloning operations.

For European organizations using Mautic for marketing automation, this vulnerability poses a risk primarily to the integrity of marketing data and segment management. Unauthorized cloning of segments could lead to unauthorized duplication and potential manipulation of customer segments, which might result in incorrect targeting, data inconsistencies, or leakage of segment configurations. While the vulnerability does not directly impact confidentiality or availability, the integrity compromise could indirectly affect marketing campaign effectiveness and compliance with data governance policies such as GDPR. Additionally, if attackers leverage this flaw as a stepping stone, it could facilitate further privilege escalation or unauthorized actions within the marketing platform. Organizations with strict data handling and segmentation requirements, especially those in regulated industries like finance, healthcare, or telecommunications, may face compliance risks if unauthorized segment cloning leads to improper data processing. The medium severity rating reflects that exploitation requires authenticated access, limiting exposure to internal users or compromised accounts, but the ease of exploitation (low complexity, no user interaction) means that once authenticated, attackers can readily abuse the flaw.

1. Immediate update of Mautic to the latest patched version that includes proper authorization checks for the cloneAction in ListController.php. 2. Review and tighten user role and permission assignments within Mautic to ensure minimal necessary privileges are granted, particularly restricting segment creation permissions to trusted users only. 3. Implement monitoring and alerting on segment cloning activities to detect unusual or unauthorized cloning attempts. 4. Conduct regular audits of segment configurations and changes to identify unauthorized modifications. 5. Enforce strong authentication mechanisms (e.g., MFA) for all users accessing Mautic to reduce the risk of compromised accounts being used to exploit this vulnerability. 6. Consider network segmentation or access controls to limit Mautic access to only authorized personnel and systems. 7. Educate marketing and IT teams about the importance of permission hygiene and the risks associated with privilege escalation within marketing platforms.