Cross-site scripting in baserCMS - CVE-2020-15273
Published: October 29, 2020 / Updated: April 27, 2026
Vulnerability identifier: #VU128062
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-15273
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: baserproject
Affected software:
baserCMS
baserCMS
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary script code.
The vulnerability exists due to cross-site scripting in edit feed settings, edit widget area, sub site new registration, and new category registration when handling crafted input. A remote user can submit specially crafted input to execute arbitrary script code.
Exploitation requires an administrator to be logged in.
How to mitigate CVE-2020-15273
Install security update from vendor's website.