CVE-2019-20174

medium

Description

Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder.

References

https://github.com/CQ-Tools/CVE-2019-20174-fixed

https://github.com/CQ-Tools/CVE-2019-20174-unfixed

https://github.com/advisories/GHSA-w2pf-g6r8-pg22

https://github.com/auth0/lock/releases/tag/v11.21.0

https://auth0.com/docs/security/bulletins/cve-2019-20174

Details

Source: Mitre, NVD

Published: 2020-02-03

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00392