CVE-2019-19902: Input Validation
First published: Thu Dec 19 2019(Updated: )
An issue was discovered in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. It 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, allowing non-configuration scripts to potentially be uploaded to the server. This issue is mitigated by the fact that the attacker would be required to have the "Synchronize, import, and export configuration" permission, a permission that only trusted administrators should be given. Other measures in the product 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
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Backdrop CMS | >=1.13.0<1.13.5 | |
| Backdrop CMS | >=1.14.0<1.14.2 |
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Reference Links
Frequently Asked Questions
What is CVE-2019-19902?
CVE-2019-19902 is a vulnerability in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2 that allows the upload of entire-site configuration archives with insufficient checks for invalid data.
How can I exploit CVE-2019-19902?
As a cybersecurity analyst, I cannot provide guidance on exploiting vulnerabilities. It is unethical and illegal to exploit vulnerabilities without proper authorization.
What is the severity of CVE-2019-19902?
CVE-2019-19902 has a severity rating of 7.2 (high).
How can I fix CVE-2019-19902?
To fix CVE-2019-19902, update your Backdrop CMS installation to version 1.13.5 (for 1.13.x) or version 1.14.2 (for 1.14.x).
Where can I find more information about CVE-2019-19902?
You can find more information about CVE-2019-19902 on the Backdrop CMS security advisory page: [https://backdropcms.org/security/backdrop-sa-core-2019-016](https://backdropcms.org/security/backdrop-sa-core-2019-016)
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