CVE-2026-12626 Deserialization in Online Scheduling and Appointment Booking System – Bookly
Authenticated attackers with custom-level access can inject PHP objects via the value parameter, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12626?
CVE-2026-12626 is a high-severity unsafe deserialization vulnerability in ladela Online Scheduling and Appointment Booking System – Bookly, published on 10 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2026-12626?
How do I fix CVE-2026-12626?
No fix has been published for CVE-2026-12626 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-12626 being exploited?
There is no known exploitation of CVE-2026-12626 in the wild and no public exploit code.
Sources
Also known as GHSA-88vv-2m3v-gh9q.