CVE-2022-36071: high-severity vulnerability in drakkan sftpgo
Recovery codes abuse in SFTPGo
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.5%
SFTPGo is configurable SFTP server with optional HTTP/S, FTP/S and WebDAV support. SFTPGo WebAdmin and WebClient support login using TOTP (Time-based One Time Passwords) as a secondary authentication factor. Because TOTPs are often configured on mobile devices that can be lost, stolen or damaged, SFTPGo also supports recovery codes. These are a set of one time use codes that can be used instead of the TOTP. In SFTPGo versions from version 2.2.0 to 2.3.3 recovery codes can be generated before enabling two-factor authentication. An attacker who knows the user's password could potentially generate some recovery codes and then bypass two-factor authentication after it is enabled on the account at a later time. This issue has been fixed in version 2.3.4. Recovery codes can now only be generated after enabling two-factor authentication and are deleted after disabling it.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Affected products
drakkan · sftpgoRelated CVEs — drakkan sftpgo
In the same product, most dangerous first.
CVE-2025-24366HIGHInsufficient sanitization of user provided rsync command in SFTPGoEPSS 0.7%CVE-2022-39220MEDIUMXSS Vulnerabilities in WebClientEPSS 0.6%CVE-2024-52309MEDIUMSFTPGo allows administrators to restrict command execution from the EventManagerEPSS 0.6%CVE-2026-30914MEDIUMSFTPGo has a Path Traversal and Permission Bypass via Path Normalization DiscrepancyEPSS 0.6%CVE-2026-49244MEDIUMSFTPGo: Path confinement bypass in public browsable share partial ZIP downloadEPSS 0.4%CVE-2024-52801MEDIUMBrute force takeover of OpenID Connect session cookies in sftpgoEPSS 0.4%