OpenAEV-Platform OpenAEV 2.0.13 Lessons Endpoint userId improper authentication

Summaryinfo

A vulnerability marked as critical has been reported in OpenAEV-Platform OpenAEV. Affected is an unknown function of the component Lessons Endpoint. Performing a manipulation of the argument userId results in improper authentication. This vulnerability is known as CVE-2026-71854. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OpenAEV-Platform OpenAEV. This affects an unknown code of the component Lessons Endpoint. The manipulation of the argument userId with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Prior to version 2.260622.0, on a default installation, the `/api/player/**` lessons endpoints can be called without authentication, and they trust a client-supplied `userId` query parameter without verifying that the caller is that user or a member of the exercise. An unauthenticated client that knows an exercise UUID can read lessons-learned questions and answers (including each answer's author identity) and create or overwrite answers attributed to an arbitrary user. Version 2.260622.0 contains a patch.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-71854 since 08/07/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.260622.0 eliminates this vulnerability.

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Productinfo

Vendor

• OpenAEV-Platform

Name

• OpenAEV

Version

• 2.0.13

Website

• Product: https://github.com/OpenAEV-Platform/openaev/

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