What the vulnerability does
01Description
Missing Authorization vulnerability in Nitesh Ultimate Auction ultimate-auction allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Ultimate Auction : from n/a through <= 4.3.3.
Explanation of Vulnerability in Simple Terms
02Summary
Ultimate Auction versions 4.3.3 and earlier lack proper authorization checks, allowing authenticated users to modify auction data and availability settings they should not have access to. An attacker with a low-privilege account can alter integrity of auction records and disrupt service availability. No confidentiality breach occurs. Update to a version newer than 4.3.3.
What an attacker can do
03Attacker Capabilities
Modify auction data and disable auctions without proper authorization.
Potential impact on your site
04Site Impact
Authenticated users can tamper with auction integrity and cause service disruptions.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account on the site.
Key dates
06Disclosure timeline
December 16, 2025
CVE published
April 28, 2026
Record updated