Security advisories

This module allows uploading a zip file and extracting its content in the public file directory to serve this content from a Drupal website.

These zip files may contain arbitrary HTML or SVG content that could allow cross-site scripting vulnerabilities. While this is an expected feature, the module does not sufficiently restrict this functionality to trusted users with a "restricted access" permission. Users without a restricted permission should not be able to inject arbitrary JavaScript.

By generating and tricking a user into visiting a malicious URL, an attacker can perform site defacement.

The defacement is not stored and is only present when the URL has been crafted for that purpose. Only the defacement is present, so no other site content (such as branding) is rendered.

Drupal Core has a rarely used feature, provided by an underlying library, which allows certain attributes of incoming HTTP requests to be overridden.

This functionality can be abused in a way that may cause Drupal to cache response data that it should not. This can lead to legitimate requests receiving inappropriate cached responses (cache poisoning).

This could be exploited in various ways:

The Email TFA module provides additional email-based two-factor authentication for Drupal logins.

In certain scenarios, the module does not fully protect all login mechanisms as expected.

This issue is mitigated by the fact that an attacker must already have valid user credentials (username and password) to take advantage of the weakness.