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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.015 (73.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Auth0 Lock — versions <= 11.30.0
Weakness classification (CWE)
References
- github.com/auth0/lock/security/advisories/GHSA-jr3j-whm4-9wwm (Exploit, Third Party Advisory)
- github.com/auth0/lock/commit/d139cf01c8234b07caf265e051f39d3eab08f7ed (Patch, Third Party Advisory)
- github.com/auth0/lock/releases/tag/v11.30.1 (Third Party Advisory, 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.