baserCMS 4.4.0 and earlier is affected by Cross Site Scripting (XSS).

Impact: XSS via Arbitrary script execution.
Attack vector is: Administrator must be logged in.
Components are: Edit feed settings, Edit widget area, Sub site new registration, New category registration
Tested baserCMS Version : 4.4.0 (Latest)
Affected baserCMS Version : 4.0.0 ~ 4.4.0
Patches : https://basercms.net/security/20201029
Found by Aquilao Null

References

• GHSA-wpww-4jf4-4hx8
• https://nvd.nist.gov/vuln/detail/CVE-2020-15273
• baserproject/basercms@b70474e
• https://packagist.org/packages/baserproject/basercms