CVE-2007-4909

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-09-17 · updated 2026-06-16
Weakness: CWE-264

Description

Interpretation conflict in WinSCP before 4.0.4 allows remote attackers to perform arbitrary file transfers with a remote server via file-transfer commands in the final portion of a (1) scp, and possibly a (2) sftp or (3) ftp, URL, as demonstrated by a URL specifying login to the remote server with a username of scp, which is interpreted as an HTTP scheme name by the protocol handler in a web browser, but is interpreted as a username by WinSCP. NOTE: this is related to an incomplete fix for CVE-2006-3015.

Affected products

Winscp: 2.0.0, 3.5.5_beta, 3.5.6, 3.6, 3.6.1, 3.6.5_beta (+6)

References

http://secunia.com/advisories/26820
http://securityreason.com/securityalert/3141
http://winscp.cvs.sourceforge.net/winscp/winscp3/core/SessionData.cpp?r1=1.29&r2=1.30
http://winscp.net/eng/docs/history/
http://www.securityfocus.com/archive/1/479298/100/0/threaded
http://www.securityfocus.com/bid/25655
http://www.securitytracker.com/id?1018697
https://exchange.xforce.ibmcloud.com/vulnerabilities/36591
http://secunia.com/advisories/26820
http://securityreason.com/securityalert/3141
http://winscp.cvs.sourceforge.net/winscp/winscp3/core/SessionData.cpp?r1=1.29&r2=1.30
http://winscp.net/eng/docs/history/

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