Buyent Theme (with Buyent Classified Plugin) <= 1.0.7 — Unauthenticated Privilege Escalation via User Registration
CVE-2025-13851Published · Updated Action summary
Affected: ≤1.0.7No patch available
What to do until a fix shipsOn this page3
Overview
- Advisory ID
- CVE-2025-13851
- Product
- Buyent buyent
- Affected
- ≤1.0.7
- Fixed in
- no fix yet
- Weakness
- CWE-269 Privilege Escalation
- Required access
- No account needed
- Published
- · updated
- Credit
- シルAsuna
- Source
- Wordfence Intelligence
- Affected≤ 1.0.7
- PatchedNo fix yet
No patched version available.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
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.
Not sure which version you run? Run a passive check — it reads public files only.
Remediation & mitigations
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
References & provenance
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.