SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-3442

User input is not validated allowing an authenticated user to inject scripts into some text boxes leading to a XSS attack.

MEDIUM 5.4EPSS 0.50%

Does this matter?

Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.

Description

A flaw was found in the Red Hat OpenShift API Management product. User input is not validated allowing an authenticated user to inject scripts into some text boxes leading to a XSS attack. The highest threat from this vulnerability is to data confidentiality.

CVSS 3.1
5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.50% probability · 43th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
redhat/openshift api management
Source
secalert@redhat.com
EPSS trend
0%3%5%26 October 2026: 0.50%26 October 202626 October 2026

EPSS 0.5% 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.