CVE-2026-47646
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Customer Voice allows an unauthorized attacker to perform spoofing over a network.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceCross-site scripting (XSS) vulnerability in Dynamics 365 Customer Voice allows unauthenticated attackers to inject malicious scripts into web pages viewed by other users. The improper neutralization of input during web page generation enables attackers to perform spoofing attacks over a network, potentially hijacking user sessions or impersonating legitimate users.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Dynamics 365 Customer Voice is deployedReview Microsoft 365 admin center or tenant inventory to identify if Dynamics 365 Customer Voice is licensed and active in the organizationAffected if Customer Voice is enabled and accessible in the tenant
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Identify published Customer Voice formsNavigate to Customer Voice Projects in the Dynamics 365 admin portal and list all active survey formsAffected if Any Customer Voice surveys are published and accessible to external users
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Review web embed configurationsCheck how Customer Voice surveys are embedded - via iframe embed code, direct link, or web portal integrationAffected if Surveys are accessible via direct links or embedded in web pages without additional security controls
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Monitor for XSS indicatorsReview survey response data and web server logs for suspicious script tags, event handlers, or unusual patterns in form submissionsAffected if Unexpected script tags or JavaScript code detected in survey responses or logs
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Check for indicators of compromiseAnalyze browser console logs and network traffic for unauthorized script executions or redirects from Customer Voice URLsAffected if User sessions exhibit unexpected behavior or scripts execute in the context of Customer Voice pages
If Dynamics 365 Customer Voice is deployed and active, the environment is affected since all versions are vulnerable to this XSS flaw.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement proper input validation and output encoding for all user-supplied data in Dynamics 365 Customer Voice. Apply Microsoft security patches for Dynamics 365 when available, and configure Content Security Policy (CSP) headers to mitigate XSS risks.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-47646 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-47646 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data