CVE-2026-89257

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    CVE-2026-89257

    Published: 11 Sept 2026Last Modified: 12 Sept 2026

    Summary: AVideo through 29.0 Cross-User Category Asset Deletion via Missing Ownership Check

    Details: AVideo through 29.0 contains an insecure direct object reference (IDOR) vulnerability in objects/categoryDeleteAssets.json.php. The endpoint validates only the Category::canCreateCategory() capability and a CSRF nonce before passing the attacker-supplied $_REQUEST['id'] to Category::deleteAssets(), which recursively removes {systemRootPath}videos/categories/assets/{id}/. It omits the Category::userCanEditCategory() ownership check enforced by the sibling Category::delete(). On installations where the non-default usersCanCreateNewCategories setting is enabled, an authenticated non-admin user with the canUpload capability can send a POST request with an arbitrary category ID and recursively delete any category's on-disk asset directory (icons/images). Category records and videos are not deleted. As of the advisory publication no patched version was available.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89257.json, https://github.com/WWBN/AVideo/security/advisories/GHSA-gf2v-r8wx-ghqj, https://nvd.nist.gov/vuln/detail/CVE-2026-89257, https://www.vulncheck.com/advisories/avideo-through-29.0-cross-user-category-asset-deletion-via-missing-ownership-check

    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-2026-89257 | CVE-DB