Sisense Cloud BI Platform: Stored Cross-Site Scripting in BloX widgets
Summary
The Sisense Cloud BI Platform, a SaaS business intelligence service, contains a stored Cross-Site Scripting vulnerability in its BloX widgets. The widget API accepts HTML and JavaScript in the 'desc' and 'text' parameters, and this code runs in the browser of every user who views the widget. An attacker with a low-privilege account could plant script that exposes information in another user's session, for example an administrator's, if that user interacts with the content. No vendor fix has been confirmed.
Affected
- Sisense Cloud BI Platform (SaaS)
- Exact affected versions: Unknown. The CNA record lists the range as 0 to before 27/10/2026, which is not a version number.
Fixed in
- Unknown. INCIBE reports that no solution has been announced.
- Unverified third-party sources claim a fix on 27/10/2026. These conflict with INCIBE and are not vendor statements.
Workaround
- No vendor-published workaround is known.
- Generic measure: restrict who can create or edit BloX widgets and review dashboards for unexpected script or HTML content.
Exploitation
- INCIBE marks exploitation as 'No'.
- VulDB reports no available exploit. OffSeq reports no known exploitation and no CISA KEV listing.
- Unknown whether exploitation has occurred since disclosure.
Our recommendation
- Ask Sisense whether your tenant is affected and which fix applies.
- Limit the accounts that can create or edit BloX widgets.
- Review dashboards and access logs if you suspect misuse.
- Check Sisense customer channels again, as the status of the fix is unclear.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- INCIBE-CERT notice INCIBE-2026-794 www.incibe.es
- VulDB entry 427084 vuldb.com
- Tenable CVE record CVE-2026-117493 www.tenable.com
- OffSeq threat radar entry radar.offseq.com
- Strix CVE entry CVE-2026-117493 www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 13:12.
Original description (NVD)
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.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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