Wednesday, May 20th, 2020
Advisory ID: 
Security risk: 
Moderately Critical
Open Redirect
Versions affected: 
  • Backdrop Core 1.16.x versions prior to 1.16.1
  • Backdrop Core 1.15.x versions prior to 1.15.3

Backdrop versions 1.14 and prior do not receive security coverage.


Backdrop CMS has an Open Redirect vulnerability. For example, a user could be tricked into visiting a specially crafted link which would redirect them to an arbitrary external URL.

The vulnerability is caused by insufficient validation of the destination query parameter in the backdrop_goto() function.


Upgrade your site to the most recent version of Backdrop core. Download available on the Backdrop CMS 1.16.1 release page. See the update instructions, if needed.

Reported By: 
Fixed By: 
Coordinated By: 

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