CVE-2025-7355 is an authorization bypass vulnerability identified in the Beefull App developed by Beefull Energy Technologies. The vulnerability is classified under CWE-639, which pertains to authorization bypass through user-controlled keys. Specifically, this flaw allows an attacker with some level of privileges (PR:L - privileges required: low) to exploit trusted identifiers that the application uses for authorization decisions. The vulnerability exists in versions of the Beefull App prior to 24.07.2025. The CVSS v3.1 base score is 6.5, indicating a medium severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) reveals that the attack can be performed remotely over the network (AV:N), requires low complexity (AC:L), needs low privileges (PR:L), does not require user interaction (UI:N), and affects confidentiality (C:H) but not integrity or availability. This means an attacker with limited access can remotely exploit the vulnerability without user interaction to gain unauthorized access to sensitive information or data within the application. The flaw arises because the application relies on user-controlled keys or identifiers for authorization checks, which can be manipulated to bypass access controls. No known exploits are reported in the wild yet, and no patches have been linked at the time of publication. The vulnerability could allow unauthorized disclosure of sensitive data managed by the Beefull App, which is likely used for energy management or related services given the vendor's profile.

For European organizations using the Beefull App, this vulnerability poses a significant risk to the confidentiality of sensitive data, potentially including energy usage, operational parameters, or user credentials. Unauthorized access could lead to data leaks, privacy violations, or exposure of proprietary information. Given the critical nature of energy infrastructure and the increasing reliance on smart energy management applications, exploitation could undermine trust and compliance with data protection regulations such as GDPR. Although the vulnerability does not affect integrity or availability directly, the confidentiality breach alone could have regulatory and reputational consequences. Additionally, attackers gaining unauthorized access might use the information to facilitate further attacks or espionage. The fact that exploitation requires only low privileges and no user interaction increases the risk, especially in environments where multiple users have limited access but sensitive data is accessible. European energy providers, facility managers, and enterprises using the Beefull App for energy monitoring or control are particularly at risk.

To mitigate this vulnerability, European organizations should: 1) Immediately verify the version of the Beefull App in use and plan to upgrade to version 24.07.2025 or later once a patch is released by Beefull Energy Technologies. 2) Until a patch is available, restrict access to the Beefull App to trusted users only and enforce strict access controls at the network level, such as IP whitelisting or VPN usage, to limit exposure. 3) Monitor application logs and network traffic for unusual access patterns or attempts to manipulate authorization keys. 4) Conduct a thorough review of authorization mechanisms within the app environment to identify and remediate any user-controlled key usage or weak authorization checks. 5) Implement multi-factor authentication (MFA) for all users to reduce the risk of low-privilege accounts being exploited. 6) Coordinate with the vendor for timely updates and security advisories. 7) Educate users about the risks and encourage reporting of suspicious activity. These steps go beyond generic advice by focusing on immediate containment, monitoring, and strengthening of authorization controls specific to the Beefull App environment.