{"cve":"CVE-2021-21403","nvd":{"published":"2021-03-26T18:15:12.360","modified":"2026-06-17T03:35:29.893","status":"Modified","description":"In github.com/kongchuanhujiao/server before version 1.3.21 there is an authentication Bypass by Primary Weakness vulnerability. All users are impacted. This is fixed in version 1.3.21.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-287","CWE-305"],"references":["https://github.com/kongchuanhujiao/server/commit/9a125624f219e496bdf4b07b404816d5a309bdc1","https://github.com/kongchuanhujiao/server/security/advisories/GHSA-8wrg-m8vm-5fvj","https://github.com/kongchuanhujiao/server/commit/9a125624f219e496bdf4b07b404816d5a309bdc1","https://github.com/kongchuanhujiao/server/security/advisories/GHSA-8wrg-m8vm-5fvj"],"products":["kongchuanhujiao_project:kongchuanhujiao"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-21403","score":0.01359,"percentile":0.71704,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8wrg-m8vm-5fvj","url":"https://osv.dev/vulnerability/GHSA-8wrg-m8vm-5fvj","summary":"Authentication Bypass by Primary Weakness in github.com/kongchuanhujiao/server","modified":"2026-07-08T06:29:18.110925830Z","packages":[{"ecosystem":"Go","name":"github.com/kongchuanhujiao/server","purl":"pkg:golang/github.com/kongchuanhujiao/server","ranges":["<1.3.21"],"fixed":["1.3.21"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}