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CVE-2025-47813 is an information-disclosure vulnerability in Wing FTP Server versions 7.4.3 and earlier. The web authentication handler in loginok.html insufficiently validates the UID session-cookie value. An authenticated attacker can supply a UID value exceeding the operating system's maximum path length, causing an error response that exposes the full local installation path of the Wing FTP Server application.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
44 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Wing FTP Server information disclosure vulnerability used as an example of enhanced CISA KEV catalog output.
A Wing FTP Server information disclosure vulnerability used as an example of enhanced CISA KEV catalog output.
A critical Wing FTP Server vulnerability that enables low-privileged attackers to disclose the full local installation path, and is significant because it is actively exploited and can be chained toward remote code execution attacks.
An information disclosure vulnerability in Wing FTP Server caused by improper handling of an excessively long UID cookie, leading to verbose error messages that expose sensitive system information.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.