CVE-2026-97224: Cross Site Scripting in Excalidraw
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.
AI Analysis
Technical Summary
This vulnerability affects Excalidraw up to version 0.18.1 in the file packages/excalidraw/data/restore.ts within the Imported File Handler component. Manipulating the argument customData.generationData.html leads to cross-site scripting, enabling remote attackers to execute arbitrary scripts in the context of the affected application. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. Exploit code is publicly available, but no vendor response or patch has been provided.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the context of the vulnerable Excalidraw application, potentially leading to session hijacking, data theft, or other malicious actions within the user's browser session. The vulnerability requires user interaction (UI:P) and has low impact on confidentiality and integrity but can affect availability minimally.
Mitigation Recommendations
No official fix or patch is currently available, and the vendor has not responded to the disclosure. Users should exercise caution when importing files or handling untrusted data in affected versions 0.18.0 and 0.18.1. Monitor vendor channels for updates or patches. Consider applying application-level input sanitization or filtering as a temporary mitigation if feasible.
CVE-2026-97224: Cross Site Scripting in Excalidraw
Description
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.
CVSS v4.0
Score 5.3medium
Affected software
Excalidraw
cpe:2.3:a:excalidraw:excalidraw:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Excalidraw up to version 0.18.1 in the file packages/excalidraw/data/restore.ts within the Imported File Handler component. Manipulating the argument customData.generationData.html leads to cross-site scripting, enabling remote attackers to execute arbitrary scripts in the context of the affected application. The vulnerability has a CVSS 4.0 base score of 5.3, indicating medium severity. Exploit code is publicly available, but no vendor response or patch has been provided.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary scripts in the context of the vulnerable Excalidraw application, potentially leading to session hijacking, data theft, or other malicious actions within the user's browser session. The vulnerability requires user interaction (UI:P) and has low impact on confidentiality and integrity but can affect availability minimally.
Mitigation Recommendations
No official fix or patch is currently available, and the vendor has not responded to the disclosure. Users should exercise caution when importing files or handling untrusted data in affected versions 0.18.0 and 0.18.1. Monitor vendor channels for updates or patches. Consider applying application-level input sanitization or filtering as a temporary mitigation if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-24T09:43:39.888Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab53bc5f7a7c541067483f2
Added to database: 09/24/2026, 15:03:33 UTC
Last enriched: 09/24/2026, 15:18:31 UTC
Last updated: 09/24/2026, 16:11:53 UTC
Views: 5
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