#VU30509 Cross-site scripting in Backdrop CMS - CVE-2019-19900
Published: December 19, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30509
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-19900
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Backdrop CMS
Backdrop CMS
Software vendor:
Backdrop CMS
Backdrop CMS
Description
The vulnerability allows a remote privileged user to read and manipulate data.
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 content type names in the content creation interface. An attacker could potentially craft a specialized content type name, then have an editor execute scripting when creating content, aka XSS. This vulnerability is mitigated by the fact that an attacker must have a role with the "Administer content types" permission.
Remediation
Install update from vendor's website.