CVE-2025-47813VulnerabilityPublished 10 Jul 2025Updated 17 Mar 2026

CVE-2025-47813: wftpserver Wing FTP Server · Generation of Error Message Containing Sensitive Information

Affects wftpserver Wing FTP ServerSource CVE Database V5

Exploited in the wild · KEV due 30 Mar 2026 · public detection template (Nuclei) · 62% EPSS : apply the vendor's fix or mitigations to wftpserver Wing FTP Server now.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

KEV deadline: 30 Mar 2026 US federal agencies must patch by this date; a sensible deadline for everyone else.
EPSS: 62.5% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: evidence found.
nuclei template: Wing FTP Server <= 7.4.3 - Path Disclosure via Overlong UID Cookie
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV 249 days after disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

CVE ID reserved
by mitre
2025-05-10, 61 days before disclosure
CVE published
on cve.org
2025-07-10, t = 0
In Threat Radar
record ingested
2025-07-1017:01Z, the same day as disclosure
Added to CISA KEV (opens in a new tab)
exploitation confirmed
2026-03-16, 249 days after disclosure
KEV remediation due
US federal deadline
2026-03-30, 263 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Affected software

Product	Affected	Fixed in
wftpserver Wing FTP Server	Affected =0	Fixed in–

Description

CVE-2025-47813 is a medium severity vulnerability in Wing FTP Server versions before 7.4.4 where the loginok.html page discloses the full local installation path when a long UID cookie value is used. This information disclosure stems from improper error message handling (CWE-209), potentially aiding attackers in reconnaissance. The vulnerability requires network access and low privileges but no user interaction. Exploitation does not impact integrity or availability but leaks sensitive path information that could facilitate further attacks. No known exploits are reported in the wild yet. Organizations using affected Wing FTP Server versions should prioritize patching or mitigating this issue. Countries with significant Wing FTP Server deployments and critical infrastructure relying on FTP services are at higher risk.

Impact

The primary impact of CVE-2025-47813 is the disclosure of sensitive internal information, specifically the full local installation path of the Wing FTP Server application. While this does not directly compromise system integrity or availability, it provides attackers with valuable reconnaissance data that can be used to tailor further attacks such as privilege escalation, directory traversal, or exploitation of other vulnerabilities. Organizations relying on Wing FTP Server for critical file transfer operations may face increased risk of targeted attacks if this information is exposed. The vulnerability requires network access and low privileges, meaning an attacker with limited access could exploit it remotely without user interaction. Although no active exploits are known, the information leakage could facilitate more sophisticated attacks, especially in environments where FTP servers are exposed to untrusted networks. This could lead to data breaches or service disruptions if combined with other vulnerabilities. The impact is thus moderate but non-negligible, warranting timely remediation to prevent escalation.

Mitigation

To mitigate CVE-2025-47813, organizations should: 1) Upgrade Wing FTP Server to version 7.4.4 or later as soon as the patch is available, since this version addresses the vulnerability. 2) Implement strict access controls to limit network exposure of the FTP server, restricting access to trusted IP addresses and internal networks only. 3) Configure web server and application error handling to avoid detailed error messages that reveal internal paths or system information. 4) Employ web application firewalls (WAFs) or intrusion detection/prevention systems (IDS/IPS) to monitor and block suspicious requests, especially those with unusually long cookie values or malformed inputs. 5) Conduct regular security audits and penetration testing to identify and remediate similar information disclosure issues. 6) Educate administrators on secure configuration and monitoring of FTP servers to detect anomalous activities early. These steps go beyond generic advice by focusing on proactive error handling, network segmentation, and monitoring tailored to the nature of this vulnerability.

CWE-209Generation of Error Message Containing Sensitive Information (opens in a new tab)
Base weaknessLikelihood of exploit: HighOWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
The product generates an error message that includes sensitive information about its environment, users, or associated data.
Implementation
Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended).
Implementation
Handle exceptions internally and do not display errors containing potentially sensitive information to a user.
Implementation · Attack Surface Reduction
Use naming conventions and strong types to make it easier to spot when sensitive data is being used. When creating structures, objects, or other complex entities, separate the sensitive and non-sensitive data as much as possible.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
Attack patterns
Fuzzing for application mapping (opens in a new tab)
Padding Oracle Crypto Attack (opens in a new tab)
Query System for Information (opens in a new tab)
Blind SQL Injection (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

Timeline

What to do

Affected software

Description

AI analysisMachine-generated, updated 24 Mar 2026, 01:07 UTC

Public exploits and detectiona Nuclei detection template

WeaknessesCWE-209

Technical details

References

Community reviews

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