Description
A flaw was found in Keycloak in the execute-actions-email endpoint. This issue allows arbitrary HTML to be injected into emails sent to Keycloak users and can be misused to perform phishing or other attacks against users.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=2073157
https://github.com/keycloak/keycloak/security/advisories/GHSA-m4fv-gm5m-4725
https://herolab.usd.de/security-advisories/usd-2021-0033/
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