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CVE-2026-59710

MEDIUM(6.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Risk Signal Score25/100 — MITTEL
  • CVSS 6.1 — Mittel
  • Weniger als 24 Stunden alt

Beschreibung

showdown contains a stored cross-site scripting vulnerability in the parseHeaders function of src/subParsers/makehtml/tables.js that fails to properly escape table header ID attributes. Attackers can inject arbitrary HTML and script-executing SVG elements through double-quote characters in markdown table headers, achieving stored XSS when untrusted markdown is rendered with the default github flavor configuration.

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