CVE-2025-59711 is a high-severity vulnerability found in Kovai's BizTalk360 prior to version 11.5. This vulnerability allows an authenticated attacker to exploit mishandling of user-provided input in an upload mechanism, leading to a directory traversal attack. The attacker can write files outside of the designated directory, potentially leading to unauthorized access to sensitive data or system functions.
The CVSS score for this vulnerability is 8.3, indicating a high severity level. This score is significant as it reflects the potential impact on confidentiality, integrity, and availability, with high confidentiality and integrity impacts and a low availability impact. The vulnerability was published on April 3, 2026, underscoring the importance of timely mitigation.
Risk to organizations includes the potential for attackers to gain unauthorized access to sensitive data or perform actions that could compromise system integrity. This vulnerability highlights the need for robust input validation in applications to prevent such attacks. Organizations should prioritize patching immediately to address this vulnerability.
Currently, there are no known exploits or public proofs of concept available for CVE-2025-59711. However, the risk remains high given the nature of the vulnerability, and organizations should be vigilant in monitoring their systems for any signs of exploitation.
Vulnerability Details
An issue was discovered in BizTalk360 before version 11.5 due to mishandling of user-provided input in an upload mechanism. This vulnerability, classified under CWE-22, allows an authenticated attacker to perform directory traversal, enabling the attacker to write files outside of the intended directory. The vulnerability's CVSS score is 8.3, categorizing it as high severity.
The affected product is BizTalk360, with the vulnerability impacting all versions prior to 11.5. It was published on April 3, 2026, and has been analyzed thoroughly.
Technical Analysis
The root cause of CVE-2025-59711 lies in the inadequate handling of user-input within the upload mechanism of BizTalk360. An attacker with authenticated access can exploit this vulnerability by crafting specific input that the system fails to validate properly, leading to unauthorized file writing outside the intended directory.
The attack vector for this vulnerability is network-based, with low attack complexity and low privileges required for exploitation. User interaction is not required for the attack to succeed, which increases the risk of exploitation.
The potential impact includes high confidentiality and integrity effects, as sensitive files could be accessed or modified without authorization. Availability impact is considered low, meaning that the exploit does not directly affect the service's availability.
Risk & Impact Analysis
The real-world risk associated with CVE-2025-59711 is significant, as organizations using BizTalk360 could face unauthorized access to sensitive information or disruption of services. The ability for authenticated users to exploit directory traversal can lead to severe consequences, especially if attackers gain access to critical files or system functionalities.
This vulnerability poses a threat to all organizations utilizing affected versions of BizTalk360, potentially allowing attackers to escalate their privileges and access sensitive areas of the application. Therefore, organizations should assess their exposure to this vulnerability and prioritize remediation efforts in their patch management cycles.
Given the CVSS score of 8.3 and the potential for exploitation, organizations should address this vulnerability in priority patch cycles. The urgency to remediate should be classified as high.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
BizTalk360 versions prior to 11.5 are affected by this vulnerability. Organizations using these versions should ensure they are updated to the latest version to mitigate the risk.
Mitigation & Remediation
To mitigate the risk posed by CVE-2025-59711, organizations should prioritize applying the latest patches for BizTalk360. Upgrading to version 11.5 or later is crucial to eliminate the vulnerability. If immediate patching is not feasible, organizations should consider implementing input validation measures to restrict file uploads and prevent directory traversal.
Additionally, organizations are encouraged to conduct security assessments and penetration testing to identify and remediate similar vulnerabilities in their applications. For comprehensive security testing, organizations may utilize penetration testing services that evaluate the security of their applications and infrastructure.
Detection Guidance
Organizations should monitor logs for any unusual file access patterns or unauthorized write attempts to directories outside the intended locations. Behavioral anomalies related to file uploads should also be tracked to identify potential exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2025-59711 reflects a critical issue in input validation and highlights the importance of secure coding practices in application development. Organizations should regularly review and update their security posture to mitigate such vulnerabilities effectively.
The trend towards vulnerabilities related to directory traversal and input validation emphasizes the need for comprehensive security measures. Security teams should implement best practices for input validation and routinely conduct security assessments to identify potential weaknesses.
To further enhance their defenses, organizations can explore vulnerability management programs and adopt continuous security practices to safeguard against emerging threats.
As organizations adapt to evolving threat landscapes, maintaining a proactive approach to security will be crucial in defending against vulnerabilities like CVE-2025-59711.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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