CVE-2026-55650
Outerbase Studio: Stored XSS in Text Widget Leads to Authentication Token Exposure
Description
## Summary A Stored Cross-Site Scripting (XSS) issue previously existed in the Text Widget in Board of Outerbase Studio where unsanitized HTML could be rendered using `dangerouslySetInnerHTML` ### Steps to Reproduce 1. Create a new dashboard. 2. Add a **Text widget**. 3. Insert the following payload: ```html <img src=x onerror="alert('XSS Executed\nToken: ' + localStorage.getItem('ob-token'))"> ``` ### Architectural Context Outerbase Cloud and its backend services were discontinued in 2025. The current version of Outerbase Studio operates purely as a client-side application, with dashboard data stored locally in the browser. ### Impact In the current architecture, the impact is limited to local self-XSS within a user's browser session. The previously described scenarios involving: - authentication token theft - account takeover - database access are no longer applicable since there are no active backend services or authentication tokens. ### Remediation The unsafe HTML rendering in the Text Widget has been removed in commit https://github.com/outerbase/studio/commit/b06fb85e5967440278d5a815721b360920566ab9 by eliminating the use of dangerouslySetInnerHTML.
How to fix CVE-2026-55650
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- —no fix listed
Is CVE-2026-55650 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-55650.
Affected packages (1)
- from 0, <= 0.10.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |