CVE-2022-29172

Auth0 is an authentication broker that supports both social and enterprise identity providers, including Active Directory, LDAP, Google Apps, and Salesforce. In versions before `11.33.0`, when the “additional signup fields” feature [is configured](https://github.com/auth0/lock#additional-sign-up-fields), a malicious actor can inject invalidated HTML code into these additional fields, which is then stored in the service `user_metdata` payload (using the `name` property). Verification emails, when applicable, are generated using this metadata. It is therefor possible for an actor to craft a malicious link by injecting HTML, which is then rendered as the recipient's name within the delivered email template. You are impacted by this vulnerability if you are using `auth0-lock` version `11.32.2` or lower and are using the “additional signup fields” feature in your application. Upgrade to version `11.33.0`.

• CWE-79
• CWE-79

• https://github.com/auth0/lock/commit/79ae557d331274b114848150f19832ae341771b1Patch, Third Party Advisory
• https://github.com/auth0/lock/security/advisories/GHSA-7ww6-75fj-jcj7Third Party Advisory
• https://github.com/auth0/lock/commit/79ae557d331274b114848150f19832ae341771b1Patch, Third Party Advisory
• https://github.com/auth0/lock/security/advisories/GHSA-7ww6-75fj-jcj7Third Party Advisory

Published

May 5, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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