CVE-2026-12626CWE-502insecure-deserialization

CVE-2026-12626

High · published October 10, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
23.5
In the wild
Unconfirmed
What it is

The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 28.2 via deserialization of untrusted input via the ‘value’ parameter. This makes it possible for authenticated attackers, with custom-level access and above, to inject a PHP Object. No known gadget chain is available.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00318 · 23.5th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-10-10T11:16Z
References (2)
https://plugins.trac.wordpress.org/changeset/3707284/bookly-responsive-appointment-booking-tool · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/56c5e045-e91c-4517-8164-a21c3e99623b?source=cve · [email protected]
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 10 OCT 06:40Z
    Online Scheduling and Appointment Booking System <= 28.2 - Authenticated (Custom+) PHP Object Injection via 'value' Parameter
    cvelistv5
  • 10 OCT 06:40Z
    Online Scheduling and Appointment Booking System <= 28.2 - Authenticated (Custom+) PHP Object Injection via 'value' Parameter
    cvelistv5