CVE Feed

    Dashboard / CVE / CVE-2021-41241

    CVE-2021-41241

    Nextcloud server is a self hosted system designed to provide cloud style services. The groupfolders application for Nextcloud allows sharing a folder with a group of people. In addition, it allows setting "advanced permissions" on subfolders, for example, a user could be granted access to the groupfolder but not specific subfolders. Due to a lacking permission check in affected versions, a user could still access these subfolders by copying the groupfolder to another location. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the "groupfolders" application in the admin settings.

    Published:Mar 8, 2022
    Last Modified:Apr 23, 2025
    EPS:Mar 8, 2022
    EPSS Score:0.00277
    CVSS Score:4.3

    Affected Products

    Vendor
    Nextcloud
    Product
    Nextcloud Server

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-45810 (CVSS 6.8) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before…
    CVE-2026-45691 (CVSS 5.9) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45690 (CVSS 5.9) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45285 (CVSS 6.4) — Nextcloud is an open source content collaboration platform. From versions 32.0.0 to before 32.0.9, and 33.0.0 …
    CVE-2026-45283 (CVSS 6.3) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45282 (CVSS 6.5) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45281 (CVSS 8.1) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2026-45279 (CVSS 4.4) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before…
    CVE-2026-45157 (CVSS 6.3) — Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before…
    CVE-2025-64011 (CVSS 4.3) — Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High