CVEs-PoC/2020/CVE-2020-13346.md

### [CVE-2020-13346](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13346)
![](https://img.shields.io/static/v1?label=Product&message=GitLab&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20access%20control%20in%20GitLab&color=brighgreen)

### Description

Membership changes are not reflected in ToDo subscriptions in GitLab versions prior to 13.2.10, 13.3.7 and 13.4.2, allowing guest users to access confidential issues through API.

### POC

#### Reference
- https://gitlab.com/gitlab-org/gitlab/-/issues/219496

#### Github
No PoCs found on GitHub currently.