{"cve":"CVE-2024-21637","nvd":{"published":"2024-01-11T06:15:43.787","modified":"2026-06-17T07:09:53.917","status":"Modified","description":"Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. This relatively user could use the described attacks to perform a privilege escalation. This vulnerability has been patched in versions 2023.10.6 and 2023.8.6.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.6","https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.6","https://github.com/goauthentik/authentik/security/advisories/GHSA-rjpr-7w8c-gv3j","https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.6","https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.6"],"products":["goauthentik:authentik"],"source":"nvd","synced_at":"2026-10-19T21:43:38.875533635+00:00"},"epss":{"cve":"CVE-2024-21637","score":0.00547,"percentile":0.45851,"date":"2026-10-31"},"kev":null,"osv":[],"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."]}