CVE-2020-5263: auth0 auth0.js Insufficiently Protected Credentials
Vulnerability summary
CVE-2020-5263 is a medium (CVSS 5.5) Insufficiently Protected Credentials vulnerability in auth0 auth0.js. EPSS estimates a 0.87% chance of exploitation in the next 30 days, higher than 58.1% of scored vulnerabilities.
Timeline
- 09-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
auth0.js (NPM package auth0-js) greater than version 8.0.0 and before version 9.12.3 has a vulnerability. In the case of an (authentication) error, the error object returned by the library contains the original request of the user, which may include the plaintext password the user entered. If the error object is exposed or logged without modification, the application risks password exposure. This is fixed in version 9.12.3
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · NpmEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N
- NVDNIST4.9MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.87%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.87% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Auth01 product
- auth0.js≥ 8.0.0, < 9.12.3 | ≥ 8.0.0, ≤ 9.13.1
Npm1 product
- auth0-js≥ 8.0.0, < 9.13.2
2 vendors · 2 products
References
3 links- github.com/auth0/auth0.js/security/advisories/GHSA-prfq-f66g-43mpX Refsource CONFIRMWEBThird Party Advisory
- github.com/auth0/auth0.js/commit/355ca749b229fb93142f0b3978399b248d710828X Refsource MISCWEBPatchThird Party Advisory