SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2021-3030

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.

MEDIUM 6.1EPSS 0.31%

Does this matter?

Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.31% probability · 24th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.31%26 October 202626 October 2026

EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.