CVE-2024-48536 is a vulnerability identified in eSoft Planner version 3.24.08271-USA, a software product used for business transaction planning and management. The root cause is an incorrect access control mechanism that fails to properly restrict access to transaction data. Attackers can exploit this flaw by crafting specific web requests that bypass authentication and authorization checks, enabling them to view all transactions performed by the company. This vulnerability is classified under CWE-79, which typically relates to improper neutralization of input leading to cross-site scripting (XSS), but here it manifests as an access control bypass. The CVSS v3.1 base score is 7.5, reflecting a network attack vector with low complexity, no privileges required, no user interaction, and a high impact on confidentiality. The vulnerability does not affect data integrity or availability. No patches or official fixes have been published yet, and no active exploitation has been reported. However, the exposure of sensitive transaction data can lead to significant business risks including financial fraud, competitive intelligence leaks, and regulatory compliance violations. The vulnerability affects all deployments of the specified version of eSoft Planner, which is primarily used in the USA but may also be deployed internationally by companies with US operations or subsidiaries.

The primary impact of CVE-2024-48536 is the unauthorized disclosure of sensitive transaction data, which compromises confidentiality. This can lead to financial fraud, insider trading, loss of competitive advantage, and regulatory penalties for failing to protect sensitive business information. Since the vulnerability does not affect integrity or availability, the core business operations may continue uninterrupted, but the exposure of transaction details alone can have severe reputational and financial consequences. Organizations worldwide using eSoft Planner 3.24.08271-USA are at risk, especially those handling large volumes of sensitive financial transactions. Attackers do not need any privileges or user interaction, making exploitation easier and increasing the threat surface. The lack of known exploits in the wild suggests the vulnerability is newly disclosed, but the risk of future exploitation remains high if unmitigated. This vulnerability could also be leveraged as a stepping stone for further attacks if attackers gain insights into business operations.

To mitigate CVE-2024-48536, organizations should immediately review and restrict access controls on all endpoints serving transaction data within eSoft Planner. Implement strict authentication and authorization checks to ensure only authorized personnel can view transaction records. Employ web application firewalls (WAFs) to detect and block suspicious crafted requests targeting transaction endpoints. Monitor logs for unusual access patterns or repeated unauthorized access attempts. If vendor patches become available, apply them promptly. In the absence of patches, consider network segmentation to isolate the eSoft Planner system and limit exposure. Conduct security assessments and penetration testing focused on access control mechanisms. Educate staff on the sensitivity of transaction data and enforce least privilege principles. Additionally, consider encrypting sensitive data at rest and in transit to reduce the impact of unauthorized access.