Versions of the package github.com/gotenberg/gotenberg/v8/pkg/gotenberg before 8.1.0; versions of the package github.com/gotenberg/gotenberg/v8/pkg/modules/chromium before 8.1.0; versions of the package github.com/gotenberg/gotenberg/v8/pkg/modules/webhook before 8.1.0 are vulnerable to Server-side Request Forgery (SSRF) via the /convert/html endpoint when a request is made to a file via localhost, such as <iframe src="\\localhost/etc/passwd">. By exploiting this vulnerability, an attacker can achieve local file inclusion, allowing of sensitive files read on the host system. Workaround An alternative is using either or both --chromium-deny-list and --chromium-allow-list flags.

An SSRF vulnerability in Gotenberg through 6.2.1 exists in the remote URL to PDF conversion, which results in a remote attacker being able to read local files or fetch intranet resources.

It is possible to inject HTML and/or JavaScript in the HTML to PDF conversion in Gotenberg through 6.2.1 via the /convert/html endpoint.

All versions of package github.com/thecodingmachine/gotenberg are vulnerable to Server-side Request Forgery (SSRF) via the /convert/html endpoint when the src attribute of an HTML element refers to an internal system file, such as <iframe src='file:///etc/passwd'>.

A directory traversal vulnerability in the Markdown engine of Gotenberg through 6.2.1 allows an attacker to read any container files.

An incomplete-cleanup vulnerability in the Office rendering engine of Gotenberg through 6.2.1 allows an attacker to overwrite LibreOffice configuration files and execute arbitrary code via macros.

In Gotenberg through 6.2.1, insecure permissions for tini (writable by user gotenberg) potentially allow an attacker to overwrite the file, which can lead to denial of service or code execution.

A directory traversal vulnerability in file upload function of Gotenberg through 6.2.1 allows an attacker to upload and overwrite any writable files outside the intended folder. This can lead to DoS, a change to program behavior, or code execution.