CVE-2025-58959 is a path traversal vulnerability identified in AmentoTech's Taskbot software, affecting all versions up to and including 6.4. The flaw arises from improper limitation of pathname inputs, allowing an attacker to manipulate file paths to access files outside the intended restricted directory. This can lead to unauthorized disclosure of sensitive files, impacting confidentiality significantly. The vulnerability requires low privileges (PR:L) but no user interaction (UI:N) and can be exploited remotely over the network (AV:N) with low attack complexity (AC:L). The scope remains unchanged (S:U), meaning the impact is limited to the vulnerable component. The CVSS vector indicates high confidentiality impact (C:H), low integrity (I:L), and low availability (A:L) impacts. Although no public exploits are reported yet, the nature of path traversal vulnerabilities makes exploitation feasible, especially in environments where Taskbot is exposed to untrusted networks or users. The vulnerability underscores the need for proper input validation and directory access controls within Taskbot's file handling mechanisms. Since no patch links are currently available, organizations must rely on compensating controls until updates are released.

For European organizations, this vulnerability poses a significant risk of unauthorized data disclosure, which can include sensitive corporate documents, configuration files, or credentials stored on systems running Taskbot. Confidentiality breaches can lead to regulatory non-compliance, especially under GDPR, resulting in legal penalties and reputational damage. The limited integrity and availability impact reduces the risk of system manipulation or denial of service but does not eliminate the threat of information leakage. Organizations in sectors such as finance, healthcare, and critical infrastructure that rely on Taskbot for automation or task management are particularly vulnerable. The ability to exploit this remotely with low privileges increases the attack surface, especially if Taskbot instances are accessible from less secure network segments or exposed to the internet. The absence of known exploits in the wild provides a window for proactive defense, but the high CVSS score indicates urgency in addressing the issue.

1. Immediately restrict network access to Taskbot services using firewalls or network segmentation to limit exposure to trusted users only. 2. Monitor logs for unusual file access patterns or attempts to access files outside expected directories. 3. Implement strict input validation and sanitization on any user-supplied file paths if custom integrations or scripts interact with Taskbot. 4. Apply the official security patch from AmentoTech as soon as it becomes available; maintain contact with the vendor for updates. 5. Use host-based intrusion detection systems (HIDS) to detect anomalous file system activities. 6. Conduct a thorough audit of Taskbot deployments to identify exposed instances and prioritize remediation. 7. Educate administrators and users about the risks of path traversal and encourage reporting of suspicious behavior. 8. Consider temporary disabling or isolating Taskbot instances in high-risk environments until patched.