CVE-2026-103423 Missing authorization in Booking Package
Unauthenticated attackers can retrieve sensitive customer PII from the Booking Package plugin due to missing authorization checks on a specific endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103423?
CVE-2026-103423 is a high-severity missing authorization vulnerability in masaakitanaka Booking Package, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Booking Package plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.7.29 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve personally identifiable information for every booked customer stored in the booking_package_booked_customers table, including names, email addresses, phone numbers, physical addresses, and cancellation tokens. The nonce nominally protecting the endpoint is a public CSRF token emitted in the localized booking_package JavaScript object on any page rendering the [booking_package] shortcode or widget, making it trivially harvestable by unauthenticated visitors and providing no effective authentication barrier.
Weakness: CWE-862
Which versions are affected by CVE-2026-103423?
How do I fix CVE-2026-103423?
No fix has been published for CVE-2026-103423 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-2026-103423 being exploited?
There is no known exploitation of CVE-2026-103423 in the wild and no public exploit code.
Sources
Also known as GHSA-p9r9-6j46-v8mh.