Submit #666878: GitHub OpnForm 1.9.3 Cross Site Scriptinginfo

TitleGitHub OpnForm 1.9.3 Cross Site Scripting
DescriptionTitle: Authenticated Stored XSS in Form Editor Description: An authenticated stored XSS vulnerability exists in a form’s custom code editor where a user with the ability to edit a form’s custom code can inject JS that is later executed in the browser of users or administrators who view the form, enabling exfiltration of session cookies or bearer tokens and leading to account takeover. The vendor has stated that the feature is disabled until the user has configured their own domain which will mitigate this attack vector. Please see the attached Google Doc link for more information under 3. Authenticated Stored XSS in Form Editor Enables Token Theft and the Response from the Vendor section for more detail. Vulnerable version: https://github.com/JhumanJ/OpnForm/tree/v1.9.3 Patched Commit: N/A
Source⚠️ https://docs.google.com/document/d/1GUjJA9vUbsXUngAv6ySsbCIhVynf8_djardLZYEDOe0/edit?tab=t.0#heading=h.nowv0hlgdq8
User
 balejin (UID 89385)
Submission10/01/2025 20:57 (9 months ago)
Moderation10/07/2025 15:17 (6 days later)
StatusAccepted
VulDB entry327374 [JhumanJ OpnForm up to 1.9.3 Form Editor /api/open/forms/ cross site scripting]
Points20

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