CVEvulnerability
CVE-2023-39963
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-08-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-284
Description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, a missing password confirmation allowed an attacker, after successfully stealing a session from a logged in user, to create app passwords for the victim. Nextcloud server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15, 21.0.9.13, 22.2.10.14, 23.0.12.9, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.
Affected configurations
• nextcloud nextcloud server (>= 20.0.0 < 20.0.14.15)
• nextcloud nextcloud server (>= 21.0.0 < 21.0.9.13)
• nextcloud nextcloud server (>= 22.0.0 < 22.2.10.14)
• nextcloud nextcloud server (>= 23.0.0 < 23.0.12.9)
• nextcloud nextcloud server (>= 24.0.0 < 24.0.12.5)
• nextcloud nextcloud server (>= 25.0.0 < 25.0.9)
• nextcloud nextcloud server (>= 26.0.0 < 26.0.4)
• nextcloud nextcloud server 27.0.0
Related
Weakness · CWE (1)
- CWE-284 Improper Access Control weakness
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5 Vendor Advisory
- https://github.com/nextcloud/server/pull/39416 Patch
- https://hackerone.com/reports/2067572 Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5 Vendor Advisory
- https://github.com/nextcloud/server/pull/39416 Patch
- https://hackerone.com/reports/2067572 Third Party Advisory