CVE-2026-7647 Profile Builder Pro <= 3.14.5 - Unauthenticated PHP Object Injection
Unauthenticated attackers can achieve code execution via PHP object injection in the Profile Builder Pro WordPress plugin.
- 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-2026-7647?
CVE-2026-7647 is a high-severity unsafe deserialization vulnerability in Cozmoslabs Profile Builder Pro, published on 2 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Profile Builder Pro plugin for WordPress is vulnerable to PHP Object Injection in all versions up to and including 3.14.5. This is due to the use of PHP's maybe_unserialize() function on the attacker-controlled 'args' POST parameter within the wppb_request_users_pins_action_callback() AJAX handler, which lacked any nonce verification, type checking, or input validation before deserialization. Because the handler was registered with both wp_ajax_ and wp_ajax_nopriv_ hooks, it was reachable by completely unauthenticated users. This makes it possible for unauthenticated attackers to inject arbitrary PHP objects into application memory.
Weakness: CWE-502
Which versions are affected by CVE-2026-7647?
How do I fix CVE-2026-7647?
No fix has been published for CVE-2026-7647 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-2026-7647 being exploited?
There is no known exploitation of CVE-2026-7647 in the wild and no public exploit code.
Sources
Also known as GHSA-9ppp-7g47-4h53.