CVE-2023-39961

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    CVE-2023-39961

    Published: 10 Aug 2023Last Modified: 12 Aug 2026

    Summary: Text does not respect "Allow download" permissions

    Details: Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and 27.0.1, when a folder with images or an image was shared without download permissions, the user could add the image inline into a text file and download it. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 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.

    References: https://hackerone.com/reports/1965156, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39961.json, https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qhgm-w4gx-gvgp, https://nvd.nist.gov/vuln/detail/CVE-2023-39961, https://github.com/nextcloud/text/pull/4481

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 20ea9a25353129b56d46951fe7d23939665ab2b2
    Fixed -fbc4a4aad97572da902fef0ee61cbd49bba58365

    Affected versions

    27.0.0

    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-2023-39961 | CVE-DB