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.
SeverityMedium
CVSS4.8
Exploit probability—
Product
Nextcloud User Oidc
PublishedApr 4, 2023
First seenApr 4, 2023
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Update
- nextcloud user_oidc1.3.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| nextcloud user_oidc | 1.0.0 ≤ v < 1.3.0 | 1.3.0 |
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