CVE-2025-62869 identifies a missing authorization vulnerability in Gravitec.net's Web Push Notifications product, affecting versions up to 2.9.17. The vulnerability arises from incorrectly configured access control security levels, allowing attackers with some privileges (PR:L) to bypass authorization checks and perform unauthorized actions that impact data integrity. The CVSS 3.1 base score is 4.3 (medium), reflecting that the attack vector is network-based (AV:N), requires low complexity (AC:L), privileges (PR:L), no user interaction (UI:N), and impacts integrity (I:L) but not confidentiality or availability. This means an attacker who can access the network and has limited privileges can exploit the flaw to alter configurations or data within the push notification system without proper authorization. Such unauthorized modifications could lead to the delivery of malicious or misleading notifications, undermining trust and potentially facilitating further attacks such as phishing or misinformation campaigns. No public exploits are known at this time, and no patches have been linked yet, indicating the need for vigilance and proactive mitigation. The vulnerability is particularly relevant for organizations relying on Gravitec.net to manage customer engagement via web push notifications, as unauthorized changes could affect user experience and brand reputation.

For European organizations, the impact centers on the integrity of web push notification services. Unauthorized changes could enable attackers to send fraudulent notifications, potentially leading to phishing attacks, misinformation dissemination, or reputational damage. While confidentiality and availability are not directly affected, the manipulation of notification content can indirectly harm customer trust and compliance with data protection regulations such as GDPR if users are misled or deceived. Organizations in sectors with heavy reliance on digital marketing, e-commerce, media, and customer engagement platforms are particularly at risk. The need for network access and some privileges limits the attack surface but does not eliminate risk, especially in environments with multiple users or third-party integrations. The absence of known exploits reduces immediate threat but does not preclude future exploitation, emphasizing the importance of timely remediation.

Specific mitigation steps include: 1) Conduct a thorough review of Gravitec.net Web Push Notifications access control configurations to ensure strict authorization enforcement, especially for privileged operations. 2) Limit network access to the push notification management interfaces to trusted administrators and systems only, using network segmentation and firewall rules. 3) Implement robust authentication and role-based access controls to minimize privilege levels granted to users and services interacting with Gravitec.net. 4) Monitor logs and notification activity for unusual or unauthorized changes that could indicate exploitation attempts. 5) Stay informed about vendor patches or updates addressing this vulnerability and apply them promptly once released. 6) Consider additional compensating controls such as multi-factor authentication for administrative access and regular audits of notification content and delivery settings. 7) Educate relevant staff about the risks of unauthorized notification changes and establish incident response procedures for suspected misuse.