VULNERABILITY INTELLIGENCE

CVE-2023-28848

CVSS score4.8 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2023-04-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

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.

Weakness classification

  • CWE-352: Cross-Site Request Forgery (CSRF)

Primary references