PT-2026-48502 · Jgraph · Drawio

Published 2026-06-10 · Updated 2026-06-10 · CVE-2026-46642

Mitre

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

draw.io is a configurable diagramming and whiteboarding application. Prior to version 29.7.12, a crafted .drawio file can execute arbitrary JavaScript in the editor's origin when the file is opened. The vulnerability is not in the label sanitizer (which works correctly on the rendering path) but in a feature-detection routine in the Text Format panel that reads the raw cell label and assigns it to a detached element's innerHTML without sanitization. Browsers fire onerror for failed image loads even on detached elements, so an payload in any cell label triggers script execution as soon as the cell is selected — which import does automatically. This issue has been patched in version 29.7.12.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-46642

Affected Products

Drawio

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-46642 · Security Note
• https://github.com/jgraph/drawio/releases/tag/v29.7.12 · Note
• https://github.com/jgraph/drawio/security/advisories/GHSA-fqhg-287p-c6vf · Note