En bref
- CVE-2026-59711 est une vulnérabilité MOYENNE (CVSS 6.1) touchant showdown.
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.23%, plus élevée que 13.9% des vulnérabilités.
- Aucune version corrigée n'est encore connue : suivez l'avis de l'éditeur dans les références.
| Package | Affected versions | Patched versions |
|---|
| showdown npm | ≤ 2.1.0
| No fix yet |
Description
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 frontmatter metadata are inserted directly into HTML title tags, enabling attackers to break out of the title context and execute malicious scripts in the rendered page.
NVD description
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 frontmatter metadata are inserted directly into HTML title tags, enabling attackers to break out of the title context and execute malicious scripts in the rendered page.
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