CVE-2023-45151

Nextcloud server is an open source home cloud platform. Affected versions of Nextcloud stored OAuth2 tokens in plaintext which allows an attacker who has gained access to the server to potentially elevate their privilege. This issue has been addressed and users are recommended to upgrade their Nextcloud Server to version 25.0.8, 26.0.3 or 27.0.1. There are no known workarounds for this vulnerability.

• CWE-312
• CWE-312

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9Vendor Advisory
• https://github.com/nextcloud/server/pull/38398Issue Tracking, Patch
• https://hackerone.com/reports/1994324Permissions Required
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9Vendor Advisory
• https://github.com/nextcloud/server/pull/38398Issue Tracking, Patch
• https://hackerone.com/reports/1994324Permissions Required

Published

Oct 16, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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