CVE-2023-48228
7.5 · HIGHOverview
CVE-2023-48228 is a high-severity vulnerability affecting goauthentik authentik. It was published on November 21, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
authentik is an open-source identity provider. When initialising a oauth2 flow with a `code_challenge` and `code_method` (thus requesting PKCE), the single sign-on provider (authentik) must check if there is a matching and existing `code_verifier` during the token step. Prior to versions 2023.10.4 and 2023.8.5, authentik checks if the contents of `code_verifier` is matching only when it is provided. When it is left out completely, authentik simply accepts the token request with out it; even when the flow was started with a `code_challenge`. authentik 2023.8.5 and 2023.10.4 fix this issue.
Remediation
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| goauthentik | authentik | >= 0, < 2023.8.5 | Affected |
References
Frequently Asked Questions
What is CVE-2023-48228?
CVE-2023-48228 is a high-severity vulnerability affecting goauthentik authentik. It was published on November 21, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2023-48228?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-48228?
Check the references section for vendor advisories and patches from goauthentik. Update authentik to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-48228?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-48228 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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