CVE-2026-12378

CVE-2026-12378CVE-2026-12378

Description

The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin through 1.1.28 does not validate data before passing it to a PHP deserialization function, allowing unauthenticated attackers to inject arbitrary PHP objects; where a suitable gadget chain is present on the site this can be leveraged to achieve remote code execution.

Scoring

CVSS 8.1 ()
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Last modified2026-07-08
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.