Cross-site scripting in Mautic - CVE-2021-27914
Published: May 23, 2022 / Updated: May 25, 2026
Vulnerability identifier: #VU132221
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-27914
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mautic
Affected software:
Mautic
Mautic
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary script in a user's browser.
The vulnerability exists due to cross-site scripting in the installer when processing install information input. A remote privileged user can submit crafted install information to execute arbitrary script in a user's browser.
User interaction is required, and exploitation is limited to the installation process.
How to mitigate CVE-2021-27914
Install security update from vendor's website.