Cross-site scripting in Craft CMS - CVE-2023-31144
Published: May 5, 2023 / Updated: April 17, 2026
Vulnerability identifier: #VU126471
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2023-31144
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Pixel & Tonic, Inc.
Affected software:
Craft CMS
Craft CMS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary script in a victim's browser.
The vulnerability exists due to cross-site scripting in the RSS feed widget when rendering a malformed feed title. A remote attacker can supply a crafted feed title to execute arbitrary script in a victim's browser.
How to mitigate CVE-2023-31144
Install security update from vendor's website.