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 <img src=x onerror=...> 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.
Metrics
Affected Vendors & Products
References
History
Wed, 10 Jun 2026 19:45:00 +0000
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| First Time appeared |
Jgraph
Jgraph drawio |
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| Vendors & Products |
Jgraph
Jgraph drawio |
Wed, 10 Jun 2026 18:15:00 +0000
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| Description | 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 <img src=x onerror=...> 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. | |
| Title | draw.io: XSS via crafted cell label when opening a .drawio file | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-10T17:42:02.156Z
Reserved: 2026-05-15T20:11:54.584Z
Link: CVE-2026-46642
No data.
Status : Received
Published: 2026-06-10T18:17:06.007
Modified: 2026-06-10T18:17:06.007
Link: CVE-2026-46642
No data.
OpenCVE Enrichment
Updated: 2026-06-10T19:30:36Z