CVE-2026-16644
Description
This module enables you to retrieve and submit webform submissions via REST endpoints. The module doesn't sufficiently check the parent webform's permissions for creating, viewing and updating permissions. This vulnerability is mitigated by the fact that an attacker must already have permissions to use the rest resource. This advisory only affects already-unsupported versions 4.0.3 and earlier.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Packagist:https://packages.drupal.org/8 | drupal/webform_rest | <4.0.3 | 4.0.3 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.