XSS in Auth0 Lock
CVE-2021-32641
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.015 (72.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Auth0 Lock — versions <= 11.30.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2021-32641?
- CVE-2021-32641 is a high-severity vulnerability in Auth0 Lock, classified under Cross-site Scripting. CVSS score: 8.1/10. Published 2021-06-04.
- How severe is CVE-2021-32641?
- High severity. CVSS v3 base score is 8.1 out of 10.