Skip to content
OpenAdvisories
High · 7.3 CVE-2026-49436 EUVD-2026-63686

LinkAce vulnerable to stored XSS via 'javascript:' URI in Bulk Link API

Published Aug 20, 2026 · Updated Aug 21, 2026 · Assigned by GitHub_M

Description

LinkAce is a self-hosted archive to collect website links. Prior to version 2.5.7, the Bulk Link API endpoint (`POST /api/v2/bulk/links`) accepts URLs without any format validation, allowing an authenticated user to store a `javascript:` URI. The stored URI is later rendered verbatim as an `href` in Blade templates, and clicking it executes arbitrary JavaScript in the victim's browser — exfiltrating cookies and session tokens. Version 2.5.7 fixes the issue.

Affected products

VendorProductAffectedFixed
Kovah LinkAce < 2.5.7 —

References