CVE-2026-47646 Dynamics 365 Customer Voice Spoofing Vulnerability

Critical 9.3 Published Updated

An unauthorized attacker can perform spoofing via cross-site scripting in Dynamics 365 Customer Voice, requiring a vendor patch.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-47646?

CVE-2026-47646 is a critical cross-site scripting vulnerability in Microsoft Dynamics 365 Customer Voice, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Improper 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.

Weakness: CWE-79

Which versions are affected by CVE-2026-47646?

It affects 1 product.

Products include Microsoft Dynamics 365 Customer Voice.

How do I fix CVE-2026-47646?

No fix has been published for CVE-2026-47646 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-47646 being exploited?

There is no known exploitation of CVE-2026-47646 in the wild and no public exploit code.

Sources

Also known as GHSA-vp2c-mc92-v364.

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