Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-104587 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

blob42 gosuki through commit 6e2bf34 contains a Stored Cross-Site Scripting (XSS) vulnerability. The application uses text/template instead of html/template, failing to perform context-aware auto-escaping on the URL and DisplayURL fields of bookmarks in internal/webui/templates/bookmarks.html. An attacker can craft a malicious bookmark URL containing HTML attribute-breaking payloads that execute arbitrary JavaScript in the victim's browser context when rendered in the local web interface.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: CISA-ADPCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/AmalJafarzade/CVE-2026-104587	CISA-ADP	ExploitTechnical Description
https://github.com/AmalJafarzade/CVE-2026-104587	[email protected]	ExploitTechnical Description
https://github.com/blob42/gosuki	[email protected]	ProductVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	CISA-ADP

Affected Products

Product	Versions
blob42 gosuki	<= 6e2bf34
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 15, 2026	CVE Modified	CISA-ADP
Oct 13, 2026	New CVE Received	[email protected]