CVE-2025-47813 affects the Wing FTP Server, specifically versions prior to 7.4.4. This vulnerability allows an information disclosure when an attacker sends a long value in the UID cookie, resulting in the exposure of the full local installation path of the application. The CVSS score for this vulnerability is 4.3, classified as medium severity. This indicates a moderate risk level that organizations must address promptly.
Organizations utilizing affected versions should assess their exposure to this vulnerability as the risk to organizations includes potential unauthorized insights into the application’s structure. With the attack vector being network-based and the complexity rated as low, exploitation could be executed with relative ease by malicious actors. Therefore, organizations should prioritize patching immediately.
As of now, there are no confirmed public exploits or proof-of-concept code available for CVE-2025-47813, but the vulnerability has been added to the Known Exploited Vulnerabilities (KEV) catalog, indicating that it is recognized as a significant risk. The urgency for defenders is heightened given the potential implications of information disclosure.
In summary, organizations using Wing FTP Server must act swiftly to mitigate this vulnerability to safeguard their systems from possible exploitation.
Vulnerability Details
The vulnerability CVE-2025-47813 is classified as an information disclosure issue. The official description states that 'loginok.html in Wing FTP Server before 7.4.4 discloses the full local installation path of the application when using a long value in the UID cookie.' This vulnerability is categorized under CWE-209. The CVSS score provided is 4.3, indicating a medium severity level.
The impacted product is Wing FTP Server, and the vendor is wftpserver. This vulnerability was published on July 10, 2025, and has been analyzed thoroughly.
Technical Analysis
The root cause of this vulnerability stems from improper handling of cookie values, specifically the UID cookie. Attackers may leverage this flaw by sending crafted requests containing excessively long cookie values, which leads to the disclosure of sensitive information.
The attack vector is network-based, with a low attack complexity, meaning that an attacker does not require extensive resources or capabilities to exploit this vulnerability. It requires low privileges, and user interaction is not necessary for the attack to succeed.
The confidentiality impact is low, as the information disclosed is limited to the application path. There is no integrity or availability impact associated with this vulnerability.
Risk & Impact Analysis
Organizations face significant risks due to the potential information disclosure from CVE-2025-47813. The exposure of the full local installation path could aid attackers in crafting more targeted attacks, leading to broader security issues. The blast radius for this vulnerability can extend to all installations of Wing FTP Server that have not been updated to the patched version.
Given the CVSS score of 4.3, organizations should address this vulnerability as part of their priority patch cycle. The threat landscape is continuously evolving, and vulnerabilities like this can lead to severe ramifications if not mitigated promptly.
The urgency for organizations is underscored by its classification in the KEV catalog, reflecting its relevance and potential exploitation by threat actors.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected product is Wing FTP Server, specifically all versions prior to 7.4.4. Organizations should ensure that their installations are upgraded to at least this version to mitigate the vulnerability effectively.
Mitigation & Remediation
To remediate CVE-2025-47813, organizations should apply the vendor's patch as soon as it is available. Following applicable BOD 22-01 guidance for cloud services is also recommended. If a patch is not available, organizations should consider discontinuing use of the product as a last resort.
For additional support, organizations can engage in penetration testing to identify any vulnerabilities present in their systems.
Detection Guidance
Organizations should monitor logs for any unusual cookie values or unexpected access patterns that could indicate attempts to exploit this vulnerability. Behavioral anomalies in application responses should also be closely observed.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-47813 lies in its potential to inspire similar vulnerabilities in other applications. This highlights the need for security teams to proactively assess their systems for similar weaknesses. The trend of information disclosure vulnerabilities emphasizes the importance of robust application security practices.
Organizations are encouraged to adopt a comprehensive vulnerability management program to effectively manage and mitigate vulnerabilities.
Regular assessments through penetration testing can help identify and remediate vulnerabilities before they are exploited.
Security teams should also remain informed about evolving threats and trends through resources such as an application security assessment to stay ahead of potential vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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