kk Star Ratings <= 5.4.3 - IP Spoofing to Protection Mechanism Bypass

Missing Authorization
CVE CVE-2023-36528
CVSS 5.3 (Medium)
Publicly Published July 17, 2023
Last Updated July 19, 2023
Researcher Mika


The kk Star Ratings plugin for WordPress is vulnerable to IP Address Spoofing in versions up to, and including, 5.4.3. This is due to the plugin prioritizing obtaining a visitor's IP address from a spoofable HTTP header over PHP's REMOTE_ADDR. Attackers can supply a header with with a different IP Address that can be used to bypass the 'Unique votes (based on IP Address)' setting.



1 affected software package

Software Type Plugin
Software Slug kk-star-ratings (view on wordpress.org)
Patched? Yes
Remediation Update to version 5.4.4, or a newer patched version
Affected Version
  • <= 5.4.3
Patched Version
  • 5.4.4

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