CVE-2023-48228 is a critical vulnerability affecting authentik, an open-source identity provider, prior to versions 2023.10.4 and 2023.8.5. The flaw allows an attacker to bypass the Proof Key for Code Exchange (PKCE) mechanism during an OAuth2 flow by omitting the code_verifier, even when a code_challenge was initially provided, leading to unauthorized token issuance. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low complexity and no user interaction, potentially resulting in complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code, the vulnerability has garnered some community discussion, indicating awareness within the cybersecurity community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2023.8.5CPE matchmatch criteria | cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:* | ||
>= 2023.10.0, < 2023.10.4CPE matchmatch criteria | cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.