CVE-2025-13932 identifies a Broken Access Control vulnerability categorized under CWE-639 in the SolisCloud Monitoring Platform's Cloud API and Device Control API. The flaw is an Insecure Direct Object Reference (IDOR) where the plant_id parameter, which identifies specific plants monitored by the platform, is user-controllable and insufficiently validated on the server side. Authenticated users can alter the plant_id in API requests to access detailed data of any plant, bypassing intended authorization boundaries. This vulnerability affects API versions v1 and v2 and does not require elevated privileges beyond authentication or user interaction, making it easier to exploit. The CVSS 4.0 score of 8.3 (high severity) reflects the network attack vector, low complexity, no privileges required, and no user interaction needed, combined with high impact on confidentiality. The vulnerability could expose sensitive operational data such as energy production metrics, device status, and potentially control information, which could be leveraged for espionage, competitive intelligence, or to facilitate further attacks. Although no known exploits are reported in the wild, the vulnerability's nature and ease of exploitation make it a significant risk. The lack of available patches at the time of publication necessitates immediate mitigation efforts by affected organizations.

For European organizations, especially those in the renewable energy sector using SolisCloud for monitoring solar plants or other energy assets, this vulnerability poses a significant risk to confidentiality. Unauthorized access to detailed plant data could lead to exposure of sensitive operational information, potentially compromising competitive advantage and operational security. It may also facilitate further attacks such as targeted sabotage or manipulation if combined with other vulnerabilities. The integrity and availability of the systems are not directly impacted by this vulnerability, but the breach of confidentiality alone can have severe regulatory and reputational consequences under GDPR and other data protection frameworks prevalent in Europe. Additionally, energy infrastructure is considered critical, so unauthorized data access could attract regulatory scrutiny and impact national energy security strategies.

Organizations should immediately implement strict server-side authorization checks to ensure that authenticated users can only access plant data they are explicitly permitted to view. This includes validating the plant_id parameter against the user's access rights on every API request. Network segmentation and API gateway controls can help limit exposure by restricting API access to trusted networks and users. Continuous monitoring and logging of API requests should be enhanced to detect anomalous access patterns indicative of IDOR exploitation attempts. Organizations should engage with SolisCloud to obtain and apply security patches as soon as they become available. Additionally, conducting regular security assessments and penetration testing focused on API authorization controls will help identify similar weaknesses. Educating users about the importance of safeguarding their credentials can reduce the risk of unauthorized access through compromised accounts.