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MEDIUM severity

CVE-2022-39220 — sftpgo

MEDIUMFix: drakkan/sftpgo@cbef217

CVE-2022-39220 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in github.com/drakkan/sftpgo. A fix is available for github.com/drakkan/sftpgo — see the affected versions and patch details below.

XSS Vulnerabilities in WebClient

Also known asGHSA-cf7g-cm7q-rq7fGO-2022-1015
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-39220.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs51th percentile — riskier than 51% of all scored CVEsHighest risk
0.00%0.38%0.76%1.14%0.2%0.5%0.6%0.6%0.6%Jun 26Oct 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/drakkan/sftpgo

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

SFTPGo is an SFTP server written in Go. Versions prior to 2.3.5 are subject to Cross-site scripting (XSS) vulnerabilities in the SFTPGo WebClient, allowing remote attackers to inject malicious code. This issue is patched in version 2.3.5. No known workarounds exist.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/drakkan/sftpgoall versions2.3.5go get github.com/drakkan/sftpgo@v2.3.5

Affected Products

1 product · 1 configurations
Application
sftpgosftpgo_project
< 2.3.5
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/drakkan/sftpgo, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/drakkan/sftpgo to 2.3.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-39220 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

SFTPGo is an SFTP server written in Go. Versions prior to 2.3.5 are subject to Cross-site scripting (XSS) vulnerabilities in the SFTPGo WebClient, allowing remote attackers to inject malicious code. This issue is patched in version 2.3.5. No known workarounds exist.
O3 Security · Impact-Aware SCA

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CVE-2022-39220: sftpgo — Fixed in 2.3.5