CVE-2026-86189

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    CVE-2026-86189

    Published: 5 Sept 2026Last Modified: 20 Sept 2026

    Summary: WWBN AVideo Unauthenticated Path Traversal via notify.ffmpeg.json.php

    Details: WWBN AVideo contains a path traversal vulnerability in notify.ffmpeg.json.php that allows unauthenticated attackers to write files to arbitrary locations by supplying a caller-chosen path in the avideoRelativePath parameter. Attackers can replay any previously issued ciphertext as a notifyCode token, which is decrypted but never validated, to bypass authentication and write files to the application root and subdirectories.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86189.json, https://github.com/WWBN/AVideo/security/advisories/GHSA-cprx-fggj-7vpq, https://nvd.nist.gov/vuln/detail/CVE-2026-86189, https://www.vulncheck.com/advisories/wwbn-avideo-unauthenticated-path-traversal-via-notify-ffmpeg-json-php

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    29.0

    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-2026-86189 | CVE-DB