CVE-2026-12626 Details
Description
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.
A PHP Object Injection vulnerability has been identified in the Online Scheduling and Appointment Booking System – Bookly plugin for WordPress, affecting all versions through 28.2. The vulnerability arises from the deserialization of untrusted input via the 'value' parameter, allowing authenticated attackers with custom-level access and above to inject a PHP Object. Currently, no known gadget chain exists to exploit this injection.
Users are advised to update the Bookly plugin to version 28.3 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 10, 2026CISA-ADP
Assessed Oct 11, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Bookly | <= 28.2 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 11, 2026 | CVE Modified | CISA-ADP |
| Oct 10, 2026 | New CVE Received | [email protected] |
Volerion