DRUPAL-CONTRIB-2021-045 Access Bypass: This module enables you to build forms and surveys in Drupal.
Attackers can bypass access controls to view or modify webform submissions and send arbitrary emails via the Drupal Webform module.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is DRUPAL-CONTRIB-2021-045?
DRUPAL-CONTRIB-2021-045 is a missing authorization vulnerability in drupal/webform, published on 8 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Access Bypass:
This module enables you to build forms and surveys in Drupal.
The module doesn't sufficiently check access for administrative features for webforms attached to nodes using the Webform Node module. This may reveal submitted data or allow an attacker to modify submitted data. Additionally, for sites with webforms that send emails and store submissions this vulnerability would allow an attacker to use the site as an email relay (i.e. sending arbitrary emails).
There is no mitigation for this vulnerability. If you have the Webform Node module enabled you must update the Webform module.
Cross Site Scripting:
The Webform module enables site builders to create forms and surveys.
The Webform module doesn't sufficiently filter HTML when an element's 'Help title' and an 'Image Select' element's image text contain specially crafted malicious text.
This vulnerability is mitigated by the fact that an attacker must be able to create or edit webforms.
Which versions are affected by DRUPAL-CONTRIB-2021-045?
Linux distribution packages (1)
drupal/webform Packagist:https://packages.drupal.org/8 | From 6.0.0 | 6.0.6, 6.1.2 |
How do I fix DRUPAL-CONTRIB-2021-045?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is DRUPAL-CONTRIB-2021-045 being exploited?
There is no known exploitation of DRUPAL-CONTRIB-2021-045 in the wild and no public exploit code.