CVE-2023-39957

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    CVE-2023-39957

    Published: 10 Aug 2023Last Modified: 12 Aug 2026

    Summary: Path traversal allows tricking the Talk Android app into writing files into it's root directory

    Details: Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Prior to version 17.0.0, an unprotected intend allowed malicious third party apps to trick the Talk Android app into writing files outside of its intended cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workarounds are available.

    References: https://hackerone.com/reports/1997029, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39957.json, https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36f7-93f3-mcfj, https://nvd.nist.gov/vuln/detail/CVE-2023-39957, https://github.com/nextcloud/talk-android/pull/3064

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -efe34dacf66f4f36b5d47eb92632f4b1d2aab7cd

    Affected versions

    17.0.0-rc1
    17.0.0-rc2
    17.0.0-rc3

    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-2023-39957 | CVE-DB