CVE-2019-19901: XSS
An issue was discovered in Backdrop CMS 1.13.x before 1.13.5 and 1.14.x before 1.14.2. It doesn't sufficiently filter output when displaying certain block descriptions created by administrators. An attacker could potentially craft a specialized description, then have an administrator execute scripting when configuring a layout, aka XSS. This issue is mitigated by the fact that the attacker would be required to have the permission to create custom blocks, which is typically an administrative task.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-19901?
The severity of CVE-2019-19901 is medium with a CVSS score of 4.8.
What software versions are affected by CVE-2019-19901?
Backdrop CMS versions 1.13.x before 1.13.5 and 1.14.x before 1.14.2 are affected by CVE-2019-19901.
What is the CWE of CVE-2019-19901?
The CWE of CVE-2019-19901 is CWE-79.
How can I fix CVE-2019-19901?
To fix CVE-2019-19901, you should update Backdrop CMS to version 1.13.5 or 1.14.2.
Where can I find more information about CVE-2019-19901?
You can find more information about CVE-2019-19901 on the Backdrop CMS website at https://backdropcms.org/security/backdrop-sa-core-2019-013.