SB2026051610 - Improper Neutralization of Script in Attributes in a Web Page in draw.io

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Main Vulnerability Database SB2026051610

SB2026051610 - Improper Neutralization of Script in Attributes in a Web Page in draw.io

Published: May 16, 2026

Security Bulletin ID SB2026051610
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Neutralization of Script in Attributes in a Web Page (CVE-ID: CVE-2026-46642)

The vulnerability allows a remote attacker to execute arbitrary JavaScript in the editor's origin.

The vulnerability exists due to improper neutralization of script in attributes in the Text Format panel feature-detection routine in Format.js when opening a crafted .drawio file. A remote attacker can trick the victim into opening a crafted file to execute arbitrary JavaScript in the editor's origin.

Exploitation occurs when the imported file causes a cell to be selected, which automatically triggers the vulnerable code path. In same-origin embedded deployments, the script may run in the host application's origin.


Remediation

Install update from vendor's website.

References