CVE-2026-97183 WP-Invoice <= 4.3.1 - Subscriber+ User PII Disclosure via Unprotected AJAX Handlers

Medium 4.3 Published Updated

Authenticated users can access sensitive PII of all registered users due to missing capability checks in AJAX handlers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-97183?

CVE-2026-97183 is a medium-severity missing authorization vulnerability in Unknown WP-Invoice, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The WP-Invoice WordPress plugin through 4.3.1 does not perform capability checks in several of its AJAX handlers, allowing any authenticated user, such as a Subscriber, to retrieve the email addresses, display names and profile details of all registered users.

Weakness: CWE-200

Which versions are affected by CVE-2026-97183?

How do I fix CVE-2026-97183?

No fix has been published for CVE-2026-97183 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-97183 being exploited?

There is no known exploitation of CVE-2026-97183 in the wild and no public exploit code.

Sources

Also known as GHSA-82r4-qmh5-8qxf.

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