CVE-2024-27290: Docassemble HTML and javascript injection

Impact

A user could type HTML into a field, including the field for the user’s name, and then that HTML could be displayed on the screen as HTML. The HTML can also contain <script> tags allowing JavaScript to execute on the page.

Patches

The vulnerability has been patched in version 1.4.97 of the master branch. The Docker image on docker.io has been patched.

Workarounds

If upgrading is not possible, manually apply the changes of 4801ac7 and restart the server (e.g., by pressing Save on the Configuration screen).

Credit

The vulnerability was discovered by Riyush Ghimire (@richighimi).

For more information

If you have any questions or comments about this advisory:

• Open an issue in docassemble
• Join the Slack channel
• Email us at jhpyle@gmail.com