Cross-site scripting in Craft CMS - CVE-2019-9554
Published: December 31, 2019 / Updated: June 17, 2021
Vulnerability identifier: #VU34922
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2019-9554
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.
Affected software
Craft CMS
How to mitigate CVE-2019-9554
Install update from vendor's website.