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Untriaged
Permalink CVE-2026-35451
5.7 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): REQUIRED
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): HIGH
  • Integrity impact (I): NONE
  • Availability impact (A): NONE
created 2 days ago Activity log
  • Created suggestion 2 days ago
Twenty: Stored XSS via BlockNote FileBlock

Twenty is an open source CRM. Prior to 1.20.6, a Stored Cross-Site Scripting (XSS) vulnerability exists in the BlockNote editor component. Due to a lack of protocol validation in the FileBlock component and insufficient server-side inspection of block content, an attacker can inject a javascript: URI into the url property of a file block. This allows the execution of arbitrary JavaScript when a user clicks on the malicious file attachment. This vulnerability is fixed in 1.20.6.

Affected products

twenty
  • ==< 1.20.6

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