---
title: "CVE-2025-47813: Wing FTP Server Information Disclosure Vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-47813/
description: "CVE-2025-47813 (Wing FTP Server Wing FTP Server): Exploited in the wild (CISA KEV). loginok.html in Wing FTP Server before 7.4.4 discloses the full local…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-07-10
date_modified: 2026-03-17
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-47813"
kev: true
cvss: 4.3
epss: 0.62512
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-47813: Wing FTP Server Information Disclosure Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Wing FTP Server Wing FTP Server. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2026-03-16, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2026-03-30 ; treat that as the outer limit, not the target.
- EPSS 62.5% , percentile 99: FIRST’s model estimates a 62.5% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.

## What it is

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.

## Affected products (CVE record)

- wftpserver Wing FTP Server: < 7.4.4

## Severity

- mitre CVSS 3.1: 4.3 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`

## Exploitation

- CISA KEV: added 2026-03-16; federal due date 2026-03-30. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 62.51% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (wftpserver.com)](https://www.wftpserver.com/serverhistory.htm)
- [CVE.org record CVE-2025-47813](https://www.cve.org/CVERecord?id=CVE-2025-47813)
- [NVD entry CVE-2025-47813](https://nvd.nist.gov/vuln/detail/CVE-2025-47813)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-47813)
- [wftpserver.com](https://www.wftpserver.com)
- [rcesecurity.com](https://www.rcesecurity.com/2025/06/what-the-null-wing-ftp-server-rce-cve-2025-47812/)
- [github.com](https://github.com/MrTuxracer/advisories/blob/master/CVEs/CVE-2025-47813.txt)

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Source page: https://erroneo.us/security/cve/CVE-2025-47813/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt