An issue was discovered in GitLab Community and Enterprise Edition before 11.0.6, 11.1.x before 11.1.5, and 11.2.x before 11.2.2. There is Missing Authorization Control for API Repository Storage.

An issue was discovered in GitLab Community Edition and Enterprise Edition before 10.7.6, 10.8.x before 10.8.5, and 11.x before 11.0.1. The charts feature contained a persistent XSS issue due to a lack of output encoding.

An issue was discovered in GitLab Community Edition and Enterprise Edition before 10.7.6, 10.8.x before 10.8.5, and 11.x before 11.0.1. The wiki contains a persistent XSS issue due to a lack of output encoding affecting a specific markdown feature.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. XSS can occur via a Milestone name during a promotion.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. XSS can occur in the branch name during a Web IDE file commit.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. XSS can occur in the tooltip of the job inside the CI/CD pipeline.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. CSRF can occur in the Test feature of the System Hooks component.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. Information Disclosure can occur because the Prometheus metrics feature discloses private project pathnames.

GitLab Community and Enterprise Edition before 10.7.7, 10.8.x before 10.8.6, and 11.x before 11.0.4 allows Directory Traversal with write access and resultant remote code execution via the GitLab projects import component.

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) before 10.5.8, 10.6.x before 10.6.5, and 10.7.x before 10.7.2. The Move Issue feature contained a persistent XSS vulnerability.

GitLab Community and Enterprise Editions version 9.2 up to 10.4 are vulnerable to XSS because a lack of input validation in the milestones component leads to cross site scripting (specifically, data-milestone-id in the milestone dropdown feature). This is fixed in 10.6.3, 10.5.7, and 10.4.7.

GitLab Community and Enterprise Editions version 8.4 up to 10.4 are vulnerable to XSS because a lack of input validation in the merge request component leads to cross site scripting (specifically, filenames in changes tabs of merge requests). This is fixed in 10.6.3, 10.5.7, and 10.4.7.

The Auth0 integration in GitLab before 10.3.9, 10.4.x before 10.4.6, and 10.5.x before 10.5.6 has an incorrect omniauth-auth0 configuration, leading to signing in unintended users.