showdown vulnerabilities (npm)

4 vulnerabilities.

• showdown npm showdown - Stored XSS via Unescaped Table Header ID Attribute Injection CVE-2026-59710 5.3 MediumJuly 6, 2026
• showdown npm showdown - Cross-Site Scripting via Unescaped Metadata Title in completeHTMLDocument CVE-2026-59711 5.3 MediumJuly 6, 2026
• showdown npm Showdownjs Denial of Service CVE-2024-1899 Fix available 5.3 MediumFebruary 26, 2024
• showdown npm Reverse Tabnabbing in showdown GHSA-h6mq-3cj6-h738 Fix available 3.1 LowSeptember 3, 2020