XSS in Keycloak-services

CVE-2021-20323

A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.703 (98.7th percentile) — read the EPSS interpretation.

Affected products

N/a Keycloak-services — versions keycloak 17.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

bugzilla.redhat.com/show_bug.cgi (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20323?: CVE-2021-20323 is a vulnerability in Keycloak-services, classified under Cross-site Scripting. Published 2022-03-25.
Is CVE-2021-20323 known to be exploited?: 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.