MEDIUM
Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder
Published Feb 3, 2020
6.1
MEDIUMCVSS 3.1
EPSS 0.72%
Description
Auth0 Lock before 11.21.0 allows XSS when additionalSignUpFields is used with an untrusted placeholder.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.1 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.72% 0.00724
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00724
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.72% (0.00724) | 52.34th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.72% (0.00724) | 52.57th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.11% (0.00112) | 44.93th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.11% (0.00112) | 44.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00112) | 42.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Mar 31, 2022 | 2.56% (0.02561) | 62.63th | v2 (v2022.01.01) |
| Jan 6, 2022 | 2.74% (0.02742) | 62.72th | v1 |
| Jan 5, 2022 | 0.62% (0.00624) | 46.35th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
Weaknesses (1)
References (6)
- https://auth0.com/docs/security/bulletins/cve-2019-20174 x_refsource_CONFIRMExploitVendor Advisory
- https://github.com/advisories/GHSA-w2pf-g6r8-pg22 Advisory
- https://github.com/auth0/lock/commit/6c15e5659c21cd814ea119af5c51b61399598dd5
- https://github.com/auth0/lock/releases/tag/v11.21.0 x_refsource_MISCRelease NotesThird Party Advisory
- https://github.com/auth0/lock/security/advisories/GHSA-w2pf-g6r8-pg22
- https://nvd.nist.gov/vuln/detail/CVE-2019-20174
| Link | Providers | Tags |
|---|---|---|
| https://auth0.com/docs/security/bulletins/cve-2019-20174 | x_refsource_CONFIRMExploitVendor Advisory | |
| https://github.com/advisories/GHSA-w2pf-g6r8-pg22 | Advisory | |
| https://github.com/auth0/lock/commit/6c15e5659c21cd814ea119af5c51b61399598dd5 | ||
| https://github.com/auth0/lock/releases/tag/v11.21.0 | x_refsource_MISCRelease NotesThird Party Advisory | |
| https://github.com/auth0/lock/security/advisories/GHSA-w2pf-g6r8-pg22 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2019-20174 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 3, 2020
Updated Aug 5, 2024
Reserved Dec 31, 2019
Link CVE-2019-20174
CISA Vulnrichment
GHSA-W2PF-G6R8-PG22 Updated n/a