RCE in Excalidraw
CVE-2026-97224
A vulnerability was detected in Excalidraw up to 0.18.1. The impacted element is an unknown function of the file packages/excalidraw/data/restore.ts of the component Imported File Handler. Performing a manipulation of the argument customData.generationData.html results in cross site scripting. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Excalidraw — versions 0.18.0, 0.18.1
Weakness classification (CWE)
References
- VDB-409318 | Excalidraw Imported File restore.ts cross site scripting (technical-description, vdb-entry)
- VDB-409318 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- CVE-2026-97224 | CVE Analysis and Report (third-party-advisory)
- Submit #907811 | excalidraw Excalidraw 0.18.1 Stored XSS (third-party-advisory)
Frequently asked questions
- What is CVE-2026-97224?
- CVE-2026-97224 is a medium-severity vulnerability in Excalidraw, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-09-24.
- How severe is CVE-2026-97224?
- Medium severity. CVSS v3 base score is 4.3 out of 10.