DOM-based XSS in auth0-lock
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
In auth0-lock versions before and including 11.25.1, dangerouslySetInnerHTML is used to update the DOM. When dangerouslySetInnerHTML is used, the application and its users might be exposed to cross-site scripting (XSS) attacks.
Why it matters now
EPSS 0.00546 46th percentileScored 2026-11-07
Fix Fixed auth0-lock (npm): 11.26.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| auth0 | lock | up to 11.25.1 | — | No fix listed | CNA |
| — | auth0-lock (npm) | before 11.26.3 | 11.26.3 | Patch available | GHSA-6gg3-pmm7-97xc |
- lock Vendorauth0 Affected up to 11.25.1 Fixed in — No fix listed CNA
- auth0-lock (npm) Vendor— Affected before 11.26.3 Fixed in 11.26.3 Patch available GHSA-6gg3-pmm7-97xc
Remediation
- Fix · GHSA-6gg3-pmm7-97xc auth0-lock (npm) Fixed in 11.26.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15119
- 2026-10-03 Alias added: GHSA-6gg3-pmm7-97xc
References
More auth0 Lock vulnerabilities
- TI-2021-12309 Reflected XSS when using flashMessages CVSS 3.1HIGH 8.1
- TI-2022-11716 HTML injection with additional signup fields CVSS 3.1MEDIUM 6.1
- TI-2019-14549 Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2020-15119 · CVE Program
- CVE-2020-15119 · NVD
- FIRST EPSS
- GHSA-6gg3-pmm7-97xc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences