CVE-2026-117493
Received Received - Intake

Stored XSS in BloX Widgets via API Parameters

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
Stored cross-site scripting (XSS) in BloX widgets. The /api/dashboards/<id>/widgets/<id> API accepts HTML and JavaScript content in the ‘desc’ and ‘text’ parameters. The code entered is executed in the browser when the widget is rendered, which could compromise the confidentiality of the information accessible in that context.

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-117493
EUVD
EUVD-2026-110642

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Sisense Cloud BI Platform 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in the BloX widgets of Sisense's Cloud BI Platform. The API endpoint /api/dashboards/<id>/widgets/<id> accepts HTML and JavaScript code in the 'desc' and 'text' parameters. When a widget is rendered, the injected code executes in the user's browser, potentially allowing attackers to steal sensitive data or perform unauthorized actions.

Detection Guidance

To detect this vulnerability, inspect API requests to /api/dashboards/<id>/widgets/<id> for suspicious HTML or JavaScript payloads in the 'desc' and 'text' parameters. Monitor browser console logs for unexpected script executions when widgets render.

Impact Analysis

If exploited, this vulnerability could compromise the confidentiality of data accessible in the browser context when the widget is rendered. Attackers could steal session cookies, sensitive information, or manipulate displayed content. It may also lead to further attacks like phishing or malware delivery if combined with other vulnerabilities.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR's data protection principles and HIPAA's security requirements. Organizations using Sisense may face compliance breaches, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Immediately restrict access to the /api/dashboards/<id>/widgets/<id> API endpoint. Sanitize input for 'desc' and 'text' parameters to block HTML/JS content. Update Sisense Cloud BI Platform if a patch becomes available.

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