CVE-2021-39223

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    CVE-2021-39223

    Published: 25 Oct 2021Last Modified: 9 Jul 2026

    Summary:

    Details: Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Richdocuments application prior to versions 3.8.6 and 4.2.3 returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. (e.g. an attacker could see that the file `shared.txt` is located within `/files/$username/Myfolder/Mysubfolder/shared.txt`). It is recommended that the Richdocuments application is upgraded to 3.8.6 or 4.2.3. As a workaround, disable the Richdocuments application in the app settings.

    References: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93, https://hackerone.com/reports/1253460, https://github.com/nextcloud/richdocuments/pull/1760

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ab63cbd1e3692ce7aae27cfca79d3073fc2b0de5

    Affected versions

    v3.8.5
    v3.8.4
    v3.8.3
    v3.8.2
    v3.8.1
    v3.8.0

    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
    CVE-2021-39223 | CVE-DB