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showdown

2 known vulnerabilities.

showdown at a glance

Last 12 months
2
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
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Most common weaknesses

Products

showdown 2
All Critical High Medium Low Exploited only Public exploit

2 results · Feed

  • Medium 6.1
    CVE-2026-59710

    showdown - Stored XSS via Unescaped Table Header ID Attribute Injection

    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 thr…

    showdown showdown showdown npm
  • Medium 6.1
    CVE-2026-59711

    showdown - Cross-Site Scripting via Unescaped Metadata Title in completeHTMLDocument

    showdown contains a cross-site scripting vulnerability in metadata title handling that allows attackers to inject arbitrary HTML and JavaScript. When completeHTMLDocument option is enabled, unescaped less-than and greater-than characters in markdown frontmatt…

    showdown showdown showdown npm