CVE-2021-32641

Public Exploit
Reflected XSS when using flashMessages

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: auth0 lock
Published at:
Updated at:

References

Link Tags
https://github.com/auth0/lock/security/advisories/GHSA-jr3j-whm4-9wwm third party advisory exploit
https://github.com/auth0/lock/commit/d139cf01c8234b07caf265e051f39d3eab08f7ed third party advisory patch
https://github.com/auth0/lock/releases/tag/v11.30.1 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2021-32641?
CVE-2021-32641 has been scored as a high severity vulnerability.
How to fix CVE-2021-32641?
To fix CVE-2021-32641, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32641 being actively exploited in the wild?
It is possible that CVE-2021-32641 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32641?
CVE-2021-32641 affects auth0 lock.
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