5.8
CVSSv2

CVE-2020-4037

Published: 29/06/2020 Updated: 07/07/2020
CVSS v2 Base Score: 5.8 | Impact Score: 4.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.4 | Impact Score: 2.5 | Exploitability Score: 2.8
VMScore: 516
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Vulnerability Summary

In OAuth2 Proxy from version 5.1.1 and less than version 6.0.0, users can provide a redirect address for the proxy to send the authenticated user to at the end of the authentication flow. This is expected to be the original URL that the user was trying to access. This redirect URL is checked within the proxy and validated before redirecting the user to prevent malicious actors providing redirects to potentially harmful sites. This has been fixed in version 6.0.0.

Vulnerability Trend

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oauth2 proxy project oauth2 proxy