Docassemble HTML and javascript injection
Date: 2024-02
Affected: pip/docassemble.webapp
Attack vector: xss
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2024-27290
CWE: CWE-79
CVSS: 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

### 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


Mitigations:

Architectural layers (MAESTRO):