CVE-2025-47628 is a medium-severity vulnerability classified under CWE-862 (Missing Authorization) affecting the quomodosoft QS Dark Mode product up to version 3.0. This vulnerability arises due to improperly configured access control mechanisms, allowing users with limited privileges (PR:L - privileges required: low) to perform unauthorized actions that should be restricted. The vulnerability does not require user interaction (UI:N) and can be exploited remotely over the network (AV:N), making it accessible to attackers without physical or local access. The impact primarily affects the integrity and availability of the system, as unauthorized users can potentially modify data or disrupt service, although confidentiality is not impacted. The CVSS 3.1 base score of 5.4 reflects a medium severity level, indicating a moderate risk. No known exploits are currently reported in the wild, and no patches have been linked yet, suggesting that mitigation may rely on vendor updates or configuration changes once available. The vulnerability’s scope is unchanged (S:U), meaning the impact is limited to the vulnerable component and does not extend beyond it. The vulnerability is significant because missing authorization can lead to privilege escalation or unauthorized operations, which can undermine system trust and stability.

For European organizations using QS Dark Mode, this vulnerability could lead to unauthorized modifications or disruptions within the affected software environment. Since QS Dark Mode is likely a user interface enhancement tool, unauthorized changes could affect user experience, data integrity, or availability of certain features. Organizations in sectors with strict compliance requirements (e.g., finance, healthcare, government) may face regulatory risks if unauthorized access leads to data manipulation or service interruptions. The remote exploitability and lack of user interaction increase the risk of automated or large-scale attacks, potentially impacting multiple users or systems. While confidentiality is not directly affected, integrity and availability impacts could disrupt business operations or lead to loss of trust in IT systems. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, especially if attackers develop exploits post-disclosure.

European organizations should proactively monitor vendor communications for patches or updates addressing CVE-2025-47628 and apply them promptly once available. In the interim, review and tighten access control configurations related to QS Dark Mode, ensuring that privilege levels are correctly enforced and unauthorized actions are blocked. Conduct thorough access audits to identify any misconfigurations or excessive privileges granted to users. Implement network-level controls such as segmentation and firewall rules to limit exposure of QS Dark Mode services to only trusted users and systems. Employ monitoring and logging to detect unusual access patterns or unauthorized attempts to modify the application. Additionally, consider isolating QS Dark Mode deployments in controlled environments until a patch is released. Training IT staff on the specifics of this vulnerability can improve incident response readiness.