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MEDIUM6.1

PYSEC-2026-1311

Docassemble HTML and javascript injection

Quick fix

PYSEC-2026-1311 — docassemble-webapp: upgrade to the fixed version with the command below.

pip install --upgrade 'docassemble-webapp>=1.4.97'

Details

### 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](https://github.com/jhpyle/docassemble/commit/4801ac7ff7c90df00ac09523077930cdb6dea2aa) 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](https://github.com/jhpyle/docassemble/issues) * Join the [Slack channel](https://join.slack.com/t/docassemble/shared_invite/zt-2cspzjo9j-YyE7SrLmi5muAvnPv~Bz~A) * Email us at jhpyle@gmail.com

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/docassemble-webapp
Introduced in: 0Fixed in: 1.4.97
Fixpip install --upgrade 'docassemble-webapp>=1.4.97'

References