CWE
20
Advisory Published
Updated

CVE-2019-14771: Input Validation

First published: Thu Aug 08 2019(Updated: )

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.)

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Backdrop CMS>=1.12.0<1.12.8
Backdrop CMS>=1.13.0<1.13.3

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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

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