What the vulnerability does
01Description
Missing Authorization vulnerability in Nelio Software Nelio AB Testing nelio-ab-testing allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Nelio AB Testing: from n/a through <= 8.2.8.
Explanation of Vulnerability in Simple Terms
02Summary
Nelio AB Testing versions 8.2.8 and earlier lack proper authorization checks, allowing unauthenticated attackers to read sensitive data. The vulnerability requires only network access and no user interaction. An attacker can retrieve confidential information without logging in or performing any special actions.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the plugin without logging in.
Potential impact on your site
04Site Impact
Confidential information stored by the plugin may be exposed to anyone on the internet.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 15, 2026
CVE published
April 29, 2026
Record updated