XSS in Auth0 Lock
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`.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- Auth0 Lock — versions < 11.33.0
Weakness classification (CWE)
References
- github.com/auth0/lock/security/advisories/GHSA-7ww6-75fj-jcj7 (Third Party Advisory)
- github.com/auth0/lock/commit/79ae557d331274b114848150f19832ae341771b1 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-29172?
- CVE-2022-29172 is a medium-severity vulnerability in Auth0 Lock, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-05-05.
- How severe is CVE-2022-29172?
- Medium severity. CVSS v3 base score is 6.1 out of 10.