Medium severity · published Feb 3, 2020
CVE-2019-20174
Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LO
Lock · Auth0
before 11.21.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20174
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20174
Exploit
https://auth0.com/docs/security/bulletins/cve-2019-20174
Release Notes
https://github.com/auth0/lock/releases/tag/v11.21.0
More from Lock
6.1
CVE-2022-29172
HTML injection with additional signup fields
6.1
CVE-2021-32641
auth0-lock is Auth0's signin solution
5.4
CVE-2020-15119
In auth0-lock versions before and including 11.25.1, dangerouslySetInnerHTML is used to update the DOM