🛡️ CVE-2026-55650 — studio

⚪ Unknown ✅ No Known Exploit CWE-79 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Outerbase Studio: Stored XSS in Text Widget Leads to Authentication Token Exposure

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are no longer applicable since there are no active backend services or authentication tokens.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 this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2026-55650 is classified as CWE-79: Cross-site Scripting (XSS). User-supplied data is written into a page without escaping, so attacker script runs in the browser of anyone who views it.

Affected software

CVE-2026-55650 is recorded against 1 package.

  • @outerbase/studio

Timeline and source

Published on 19 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
github.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE CWE-79
Public Exploit ✅ No
Source OSV
Published 2026-06-19
Updated 2026-08-12
Modified 2026-06-19
Fix URL N/A

Affected Packages

Software From version Fixed in
@outerbase/studio — —

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