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Vulnerability record · CVE-2025-13851 · published 19 February 2026

CVE-2025-13851: Improper privilege management vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.32% · top 77.2% CWE-269 · Improper privilege management Deferred
9.8CVSS 3.1 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://themeforest.net/item/buyent-classified-wordpress-theme/32588790
https://www.wordfence.com/threat-intel/vulnerabilities/id/f3e618cf-dd77-45a7-ab57-5732fd329883?source=cve

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Source: NIST National Vulnerability Database (record CVE-2025-13851), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.