CVE-2026-35451

Published: Apr 21, 2026Modified: Jun 17, 2026Deferred

5.7

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Exploitability: 2.1 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/twentyhq/twenty/commit/8da69e0f77ea820a6845a4c3c025b6af3861d523

Source: security-advisories@github.com

https://github.com/twentyhq/twenty/security/advisories/GHSA-7w89-7q26-gj7q

Source: security-advisories@github.com

https://github.com/twentyhq/twenty/security/advisories/GHSA-7w89-7q26-gj7q

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.