CVE-2023-28848

medium

Description

user_oidc is the OIDC connect user backend for Nextcloud, an open source collaboration platform. A vulnerability in versions 1.0.0 until 1.3.0 effectively allowed an attacker to bypass the state protection as they could just copy the expected state token from the first request to their second request. Users should upgrade user_oidc to 1.3.0 to receive a patch for the issue. No known workarounds are available.

References

https://hackerone.com/reports/1878381

https://github.com/nextcloud/user_oidc/pull/580

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f

Details

Source: Mitre, NVD

Published: 2023-04-04

Updated: 2023-04-10

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00118