CVE-2021-3030

MEDIUM CVSS 3.1: 6.1 EPSS 0.31%
Updated Sep 22, 2026
Cute
Parameter Value
CVSS 6.1 (MEDIUM)
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Cute
Public PoC No

Cute Editor for ASP.NET 6.4 is vulnerable to reflected cross-site scripting caused by improper validation of the Theme GET parameter in colorpicker_more.aspx. A remote, unauthenticated attacker can craft a URL that, once opened by a victim in a browser session authenticated to a site running the vulnerable component, executes arbitrary JavaScript in the security context of that site.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v3.1