CVE-2023-39953

useroidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also...

CVE-2023-39953 Issuer not verified from obtained token in user_oidc

useroidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also...

CVE-2023-39953

The CVE-2023-39953 entry concerns Nextcloud’s user_oidc app. Affected versions: 1.0.0 through 1.3.2. Root cause: missing verification of the issuer in the OIDC token validation, enabling a potential Man-in-the-Middle attack that could return corrupted or known tokens. Impact: attacker could lever...