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CVE-2026-35451

Twenty: Stored XSS via BlockNote FileBlock PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
twentyhq / twentyaffected < 1.20.6

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.