[Security-news] Facets - Moderately critical - Cross site scripting - SA-CONTRIB-2019-030

[security-news at drupal.org]

View online: https://www.drupal.org/sa-contrib-2019-030

Project: Facets [1]
Version: 8.x-1.x-dev
Date: 2019-February-27
Security risk: *Moderately critical* 13∕25
AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Default [2]
Vulnerability: Cross site scripting

Description: 
This module enables you to create facet-filters for results of a search query
and exposes them as blocks

The module doesn't sufficiently escape HTML under the scenario leading to a
Cross Site Scripting (XSS) vulnerability.

This vulnerability is mitigated by two factors. First, an attacker must have
a way to insert results in the dataset that is exposed as a facet before this
can happen. The permission to inject malicious strings depends on the site's
search configuration but could be available to any user who can create
content in a site. Second, the site must be using the Javascript-based
dropdown widget.

Solution: 
   * Install the latest version Facets 8.x-1.3 [3]

An effective mitigation is to change the widget to use links instead of the
dropdown widget.

Reported By: 
   * Ide Braakman  [4]

Fixed By: 
   * Jimmy Henderickx  [5]
   * Joris Vercammen  [6]

Coordinated By: 
   * Greg Knaddison [7] of the Drupal Security Team


[1] https://www.drupal.org/project/facets
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/facets/releases/8.x-1.3
[4] https://www.drupal.org/user/1879760
[5] https://www.drupal.org/user/462700
[6] https://www.drupal.org/user/2393360
[7] https://www.drupal.org/user/36762