What the vulnerability does
01Description
Authorization Bypass Through User-Controlled Key vulnerability in Mikado-Themes FiveStar fivestar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects FiveStar: from n/a through <= 1.7.
Explanation of Vulnerability in Simple Terms
02Summary
FiveStar versions 1.7 and earlier contain an authorization flaw that allows authenticated users to modify data or disrupt service. An attacker with low-level account access can alter content or cause the site to become unavailable. No user interaction is required once the attacker is logged in. Update to a version newer than 1.7.
What an attacker can do
03Attacker Capabilities
Modify site data or cause temporary unavailability after logging in with a low-privilege account.
Potential impact on your site
04Site Impact
Authenticated users can tamper with content or disrupt site availability without proper permission checks.
Conditions required to exploit
05Prerequisites
Attacker must have a valid low-privilege user account on the site.
Key dates
06Disclosure timeline
December 30, 2025
CVE published
April 28, 2026
Record updated