CVE-2021-20195
keycloak Self Stored Cross-site Scripting vulnerability
9.6
CRITICAL
CVSS 3.1
EPSS 0.30%
Description
A flaw was found in keycloak in versions before 13.0.0. A Self Stored XSS attack vector escalating to a complete account takeover is possible due to user-supplied data fields not being properly encoded and Javascript code being used to process the data. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
How to fix CVE-2021-20195
To remediate CVE-2021-20195, upgrade the affected package to a fixed version below.
- —upgrade to 13.0.0 or later
Is CVE-2021-20195 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 13.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |