Jenkins Git Plugin 4.11.4 and earlier does not properly mask (i.e., replace with asterisks) credentials in the build log provided by the Git Username and Password (`gitUsernamePassword`) credentials binding.

The webhook endpoint in Jenkins Git Plugin 4.11.3 and earlier provide unauthenticated attackers information about the existence of jobs configured to use an attacker-specified Git repository.

A missing permission check in Jenkins Git Plugin 4.11.3 and earlier allows unauthenticated attackers to trigger builds of jobs configured to use an attacker-specified Git repository and to cause them to check out an attacker-specified commit.

A cross-site request forgery (CSRF) vulnerability in Jenkins Git Plugin 4.11.3 and earlier allows attackers to trigger builds of jobs configured to use an attacker-specified Git repository and to cause them to check out an attacker-specified commit.

Jenkins Git Plugin 4.11.1 and earlier allows attackers able to configure pipelines to check out some SCM repositories stored on the Jenkins controller's file system using local paths as SCM URLs, obtaining limited information about other projects' SCM contents.

Jenkins Git Plugin 4.8.2 and earlier does not escape the Git SHA-1 checksum parameters provided to commit notifications when displaying them in a build cause, resulting in a stored cross-site scripting (XSS) vulnerability.

Jenkins Git Plugin 4.2.0 and earlier does not escape the error message for the repository URL for Microsoft TFS field form validation, resulting in a stored cross-site scripting vulnerability.

A cross-site request forgery vulnerability exists in Jenkins Git Plugin 3.9.1 and earlier in src/main/java/hudson/plugins/git/GitTagAction.java that allows attackers to create a Git tag in a workspace and attach corresponding metadata to a build record.

A server-side request forgery vulnerability exists in Jenkins Git Plugin 3.9.0 and older in AssemblaWeb.java, GitBlitRepositoryBrowser.java, Gitiles.java, TFS2013GitRepositoryBrowser.java, ViewGitWeb.java that allows attackers with Overall/Read access to cause Jenkins to send a GET request to a specified URL.

An improper authorization vulnerability exists in Jenkins Git Plugin version 3.7.0 and earlier in GitStatus.java that allows an attacker with network access to obtain a list of nodes and users.

Git Plugin connects to a user-specified Git repository as part of form validation. An attacker with no direct access to Jenkins but able to guess at a username/password credentials ID could trick a developer with job configuration permissions into following a link with a maliciously crafted Jenkins URL which would result in the Jenkins Git client sending the username and password to an attacker-controlled server.