An issue was discovered in GitLab Enterprise Edition 11.7 through 11.11. The epic details page contained a lack of input validation and output encoding issue which resulted in a persistent XSS vulnerability on child epics.
An issue was discovered in GitLab Community and Enterprise Edition 10.2 through 11.11. Multiple features contained Server-Side Request Forgery (SSRF) vulnerabilities caused by an insufficient validation to prevent DNS rebinding attacks.
An issue was discovered in GitLab Community and Enterprise Edition 6.8 through 11.11. Users could bypass the mandatory external authentication provider sign-in restrictions by sending a specially crafted request. It has Improper Authorization.
An issue was discovered in GitLab Community and Enterprise Edition 11.9 through 11.11. Unprivileged users were able to access labels, status and merge request counts of confidential issues via the milestone details page. It has Improper Access Control.
An issue was discovered in GitLab Community and Enterprise Edition 8.13 through 11.11. Restricted users could access the metadata of private milestones through the Search API. It has Improper Access Control.
An issue was discovered in GitLab Community and Enterprise Edition 8.13 through 11.11. Non-member users who subscribed to issue notifications could access the title of confidential issues through the unsubscription page. It allows Information Disclosure.
An issue was discovered in GitLab Community and Enterprise Edition 11.7 through 11.11. It has Improper Input Validation. Restricted visibility settings allow creating internal projects in private groups, leading to multiple permission issues.
An issue was discovered in GitLab Community and Enterprise Edition 10.6 through 11.11. Users could guess the URL slug of private projects through the contrast of the destination URLs of issues linked in comments. It allows Information Disclosure.
GitLab 12.2.2 and below contains a security vulnerability that allows a guest user in a private project to see the merge request ID associated to an issue via the activity timeline.