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CVE-2026-55105 Joplin: Fountain embeds allow arbitrary script execution in published notes and the note viewer

🗓️ 21 Sep 2026 20:59:52Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Arbitrary script execution in Joplin via unsanitized Fountain embeds in published notes and viewer.

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25 Sep 2026 11:30Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.7
3