Vulnerability · Published Aug 20, 2026 · Assigned by GitHub_M
CVE-2026-49245SFTPGo: Stored XSS via inline parameter on public shares and user file download
Low 3.7
In plain English
A low-severity cross-site scripting in sftpgo from drakkan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/drakkan/sftpgo | no fix listed | GO-2026-5900 |
| Go | github.com/drakkan/sftpgo/v2 | 2.7.3 | GHSA-3vcg-pv95-pq54 |
| Go | github.com/drakkan/sftpgo/v2 | 2.7.3 | GO-2026-5900 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
References
- https://github.com/drakkan/sftpgo/security/advisories/GHSA-3vcg-pv95-pq54 x_refsource_CONFIRM
- https://github.com/drakkan/sftpgo/commit/b5409a478138fca5f1d369ae5d47f753156cbd15 x_refsource_MISC
- https://github.com/drakkan/sftpgo/releases/tag/v2.7.3 x_refsource_MISC