OS Command Injection in GitHub repository gogs/gogs prior to 0.12.11.

Gogs is an open source self-hosted Git service. In versions of gogs prior to 0.12.9 `DisplayName` does not filter characters input from users, which leads to an XSS vulnerability when directly displayed in the issue list. This issue has been resolved in commit 155cae1d which sanitizes `DisplayName` prior to display to the user. All users of gogs are advised to upgrade. Users unable to upgrade should check their users' display names for malicious characters.

Path Traversal in GitHub repository gogs/gogs prior to 0.12.9.

Path Traversal in GitHub repository gogs/gogs prior to 0.12.9.

OS Command Injection in GitHub repository gogs/gogs prior to 0.12.9.

Missing input validation in internal/db/repo_editor.go in Gogs before 0.12.8 allows an attacker to execute code remotely. An unprivileged attacker (registered user) can overwrite the Git configuration in his repository. This leads to Remote Command Execution, because that configuration can contain an option such as sshCommand, which is executed when a master branch is a remote branch (using an ssh:// URI). The remote branch can also be configured by editing the Git configuration file. One can create a new file in a new repository, using the GUI, with "\" as its name, and then rename this file to .git/config with the custom configuration content (and then save it).

Server-Side Request Forgery (SSRF) in GitHub repository gogs/gogs prior to 0.12.8.

Stored xss bug in GitHub repository gogs/gogs prior to 0.12.7. As the repo is public , any user can view the report and when open the attachment then xss is executed. This bug allow executed any javascript code in victim account .

Remote Command Execution in uploading repository file in GitHub repository gogs/gogs prior to 0.12.6.

Missing Authorization in GitHub repository gogs/gogs prior to 0.12.5.

Server-Side Request Forgery (SSRF) in GitHub repository gogs/gogs prior to 0.12.5.

The git hook feature in Gogs 0.5.5 through 0.12.2 allows for authenticated remote code execution. There can be a privilege escalation if access to this hook feature is granted to a user who does not have administrative privileges. NOTE: because this is mentioned in the documentation but not in the UI, it could be considered a "Product UI does not Warn User of Unsafe Actions" issue.

Gogs through 0.11.91 allows attackers to violate the admin-specified repo-creation policy due to an internal/db/repo.go race condition.

In pkg/tool/path.go in Gogs before 0.11.82.1218, a directory traversal in the file-upload functionality can allow an attacker to create a file under data/sessions on the server, a similar issue to CVE-2018-18925.

Gogs 0.11.66 allows remote code execution because it does not properly validate session IDs, as demonstrated by a ".." session-file forgery in the file session provider in file.go. This is related to session ID handling in the go-macaron/session code for Macaron.

An SSRF vulnerability in webhooks in Gitea through 1.5.0-rc2 and Gogs through 0.11.53 allows remote attackers to access intranet services.

Open redirect vulnerability in Gogs before 0.12 allows remote attackers to redirect users to arbitrary websites and conduct phishing attacks via an initial /\ substring in the user/login redirect_to parameter, related to the function isValidRedirect in routes/user/auth.go.