What’s Vulnerable › Vulnerabilities

CVE-2026-49245: SFTPGo: Stored XSS via inline parameter on public shares and user file download

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-20 · updated 2026-10-18
• Weakness: CWE-79

Description

SFTPGo is an open source, event-driven file transfer solution. From 2.2.0 until 2.7.3, the inline query parameter on browsable-share file downloads and authenticated user-file downloads suppresses Content-Disposition: attachment, allowing an attacker-controlled HTML file stored in a share or home directory to be served as text/html in the SFTPGo web origin. An attacker who can place the file can send a crafted link to a victim, and opening that link executes the stored content in the victim's browser context. Exploitation requires social engineering and suitable share or shared-folder access, while HttpOnly session cookies limit direct cookie theft. This issue is fixed in version 2.7.3.

Affected products

• drakkan sftpgo: from 2.2.0 < 2.7.2

References

• https://github.com/drakkan/sftpgo/commit/b5409a478138fca5f1d369ae5d47f753156cbd15
• https://github.com/drakkan/sftpgo/releases/tag/v2.7.3
• https://github.com/drakkan/sftpgo/security/advisories/GHSA-3vcg-pv95-pq54

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