CVE-2019-14771: Input Validation
Backdrop CMS 1.12.x before 1.12.8 and 1.13.x before 1.13.3 allows the upload of entire-site configuration archives through the user interface or command line. It does not sufficiently check uploaded archives for invalid data, potentially allowing non-configuration scripts to be uploaded to the server. (This attack is mitigated by the attacker needing the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other preventative measures in Backdrop CMS prevent the execution of PHP scripts, so another server-side scripting language must be accessible on the server to execute code.)
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-14771?
CVE-2019-14771 is a vulnerability in Backdrop CMS versions 1.12.x before 1.12.8 and 1.13.x before 1.13.3 that allows the upload of entire-site configuration archives with insufficient checks for invalid data.
How severe is CVE-2019-14771?
CVE-2019-14771 has a severity rating of 9.8 (Critical).
Who is affected by CVE-2019-14771?
Backdrop CMS versions 1.12.x before 1.12.8 and 1.13.x before 1.13.3 are affected by CVE-2019-14771.
How can I fix CVE-2019-14771?
To fix CVE-2019-14771, users of Backdrop CMS should update their installations to version 1.12.8 or 1.13.3, depending on the version they are currently using.
Where can I find more information about CVE-2019-14771?
You can find more information about CVE-2019-14771 on the official Backdrop CMS website at: https://backdropcms.org/security/backdrop-sa-core-2019-012