SFTPGo: Stored XSS via inline parameter on public shares and user file download (CVE-2026-49245) | HOL Guard CVE

Low severityCVE-2026-49245GHSA-3VCG-PV95-PQ54

SFTPGo: Stored XSS via inline parameter on public shares and user file download

Answer in brief

CVE-2026-49245 records a Low severity vulnerability in SFTPGo: Stored XSS via inline parameter on public shares and user file download. The current sources do not mark it as known exploited. The current feed maps drakkan/sftpgo (generic), github.com/drakkan/sftpgo/v2 (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 20, 2026Updated Aug 20, 2026Source checked Aug 20, 2026First seen by HOL Jul 2, 2026Material review Aug 20, 2026

Upstream Advisory

Key facts

Risk: Low
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps drakkan/sftpgo (generic), github.com/drakkan/sftpgo/v2 (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
drakkan/sftpgogeneric	>= 2.2.0 < 2.7.2	Not reported
github.com/drakkan/sftpgo/v2go	>=2.2.0,<=2.7.1	2.7.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for drakkan/sftpgo, github.com/drakkan/sftpgo/v2.
Review the reported fix. Update github.com/drakkan/sftpgo/v2 to 2.7.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 2, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.