DRUPAL-CONTRIB-2018-074 This base theme bridges the gap between Drupal and the Bootstrap Framework.
An attacker with content editing privileges can inject malicious code via data-target attributes in modals, popovers, or tooltips, leading to XSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is DRUPAL-CONTRIB-2018-074?
DRUPAL-CONTRIB-2018-074 is a cross-site scripting vulnerability in drupal/bootstrap, published on 28 Nov 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
This base theme bridges the gap between Drupal and the Bootstrap Framework.
The theme doesn't sufficiently filter valid targets under the scenario of opening modals, popovers, and tooltips.
This vulnerability is mitigated by the fact that an attacker must already have the ability to either:
- Edit/save custom content that supplies a value for the
data-targetattribute by injecting malicious code. - Inject custom markup onto the page that further exploits the
data-targetattribute by injecting malicious code. This method of attack is highly unlikely if they already have this level of access.
Note: while the base-theme does not provide either of these opportunities to do this out-of-the-box; a custom sub-theme may, however, be susceptible if it didn't sanitize or filter user provided input for XSS properly.
Which versions are affected by DRUPAL-CONTRIB-2018-074?
Linux distribution packages (1)
drupal/bootstrap Packagist:https://packages.drupal.org/8 | All versions | 3.14.0 |
How do I fix DRUPAL-CONTRIB-2018-074?
Apply the vendor's patch.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is DRUPAL-CONTRIB-2018-074 being exploited?
There is no known exploitation of DRUPAL-CONTRIB-2018-074 in the wild and no public exploit code.