CVE-2021-32641

Name: CVE-2021-32641
Creator: NVD / NIST
Published: 2021-06-04T21:15:07.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2021-32641 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. auth0-lock is Auth0's signin solution. Versions of nauth0-lock before and including `11.30.0` are vulnerable to reflected XSS. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

auth0-lock is Auth0's signin solution. Versions of nauth0-lock before and including `11.30.0` are vulnerable to reflected XSS. An attacker can execute arbitrary code when the library's `flashMessage` feature is utilized and user input or data from URL parameters is incorporated into the `flashMessage` or the library's `languageDictionary` feature is utilized and user input or data from URL parameters is incorporated into the `languageDictionary`. The vulnerability is patched in version 11.30.1.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Auth0	Lock	< 11.30.1

References

https://github.com/auth0/lock/commit/d139cf01c8234b07caf265e051f39d3eab08f7edPatch, Third Party Advisory
https://github.com/auth0/lock/releases/tag/v11.30.1Release Notes, Third Party Advisory
https://github.com/auth0/lock/security/advisories/GHSA-jr3j-whm4-9wwmExploit, Third Party Advisory
https://github.com/auth0/lock/commit/d139cf01c8234b07caf265e051f39d3eab08f7edPatch, Third Party Advisory
https://github.com/auth0/lock/releases/tag/v11.30.1Release Notes, Third Party Advisory
https://github.com/auth0/lock/security/advisories/GHSA-jr3j-whm4-9wwmExploit, Third Party Advisory

Timeline

Published: Jun 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32641?

How severe is CVE-2021-32641?

CVE-2021-32641 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32641?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32641?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST