CVE-2026-55650Public exploit

Local self-XSS via unsanitized Text Widget rendering

Published Sep 15, 2026 · Updated Sep 15, 2026

Stored XSS in Outerbase Studio 0.10.2 and earlier allows local users to execute JavaScript through a crafted dashboard Text Widget. TextComponent in src/components/chart/index.tsx passes the widget's unsanitized text to dangerouslySetInnerHTML, so event-handler markup runs when rendered. Exploitation requires the same user to create and view the widget; current client-side storage limits impact to self-XSS without token, account, or backend database exposure.

CVSS severity4.4
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Outerbase Studio 0.10.2 and earlier allows local users to execute JavaScript through a crafted dashboard Text Widget. TextComponent in src/components/chart/index.tsx passes the widget's unsanitized text to dangerouslySetInnerHTML, so event-handler markup runs when rendered. Exploitation requires the same user to create and view the widget; current client-side storage limits impact to self-XSS without token, account, or backend database exposure.

The record

CVE
CVE-2026-55650
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Outerbase
Product
Outerbase Studio
Classifications
CWE-79
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 0.10.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Outerbase · Outerbase Studioversion=<= 0.10.2

Published CVSS scores

4.4GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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