BAN Users <= 1.5.3 - Missing Authorization to Authenticated (Subscriber+) Settings Update & Privilege Escalation

Incorrect Privilege Assignment
CVE CVE-2023-4153
CVSS High (8.8)
Publicly Published September 12, 2023
Last Updated January 22, 2024
Researcher István Márton
Description

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.

References

1 affected software package

Software Type Plugin
Software Slug ban-users (view on wordpress.org)
Patched? No
Affected Version
  • <= 1.5.3
Patched Version
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