CVE-2023-4153
BAN Users <= 1.5.3 - Missing Authorization to Authenticated (Subscriber+) Settings Update & Privilege Escalation
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
The BAN Users plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.5.3 due to a missing capability check on the 'w3dev_save_ban_user_settings_callback' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify the plugin settings to access the ban and unban functionality and set the role of the unbanned user.
| CWE | CWE-266 |
| Vendor | webxmedia |
| Product | ban users |
| Published | Sep 13, 2023 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
webxmedia / BAN Users
0 ≤ 1.5.3
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/af6bd2db-47a4-4381-a881-d5f97a159f8d?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ban-users/tags/1.5.3/include/ajax.php#L199 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/ban-users/tags/1.5.3/include/ajax.php#L109
Credits
István Márton