Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | User Oidc | >= 1.0.0, < 1.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xVendor Advisory
- https://github.com/nextcloud/user_oidc/pull/580PatchVendor Advisory
- https://hackerone.com/reports/1878381Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xVendor Advisory
- https://github.com/nextcloud/user_oidc/pull/580PatchVendor Advisory
- https://hackerone.com/reports/1878381Third Party Advisory
FAQ
What is CVE-2023-28848?
CVE-2023-28848 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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 prote...
How severe is CVE-2023-28848?
CVE-2023-28848 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-28848?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud User Oidc.