CVE-2025-13851 Buyent Theme (with Buyent Classified Plugin) <= 1.0.7 - Unauthenticated Privilege Escalation via User Registration
Unauthenticated attackers can register as administrators by manipulating a parameter, gaining full control of the WordPress site.
- 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-2025-13851?
CVE-2025-13851 is a critical vulnerability in scriptsbundle Buyent, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Buyent Classified plugin for WordPress (bundled with Buyent theme) is vulnerable to privilege escalation via user registration in all versions up to, and including, 1.0.7. This is due to the plugin not validating or restricting the user role during registration via the REST API endpoint. This makes it possible for unauthenticated attackers to register accounts with arbitrary roles, including administrator, by manipulating the _buyent_classified_user_type parameter during the registration process, granting them complete control over the WordPress site.
Weakness: CWE-269
Which versions are affected by CVE-2025-13851?
How do I fix CVE-2025-13851?
No fix has been published for CVE-2025-13851 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-13851 being exploited?
There is no known exploitation of CVE-2025-13851 in the wild and no public exploit code.
Sources
Also known as GHSA-74jr-2q35-vxqh.