CVE-2026-49436: high-severity vulnerability in Kovah LinkAce
LinkAce vulnerable to stored XSS via 'javascript:' URI in Bulk Link API
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Affected products
Kovah · LinkAceRelated CVEs — Kovah LinkAce
In the same product, most dangerous first.
CVE-2026-45344HIGHLinkAce: Setup database password newline injection enables pre-auth RCE on uninitialized instancesEPSS 0.5%CVE-2024-56508HIGHFile Upload Vulnerability Leading to XSS in LinkAce v1.15.5EPSS 0.4%CVE-2025-62720HIGHLinkAce: Data Exfiltration via Export Functions Allow Access to All Users' Private LinksEPSS 0.4%CVE-2025-62721HIGHLinkAce: Authorization Bypass Allows Unauthorized Access to All Private Links, Lists, and TagsEPSS 0.4%CVE-2025-59424HIGHLinkAce Vulnerable to Stored XSS on the Audit PageEPSS 0.4%CVE-2025-62719LOWLinkAce: Limited Server-Side Request Forgery (SSRF) in Keyword Fetching FunctionalityEPSS 0.3%