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    CVE-2026-34733

    WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo installation script install/deleteSystemdPrivate.php contains a PHP operator precedence bug in its CLI-only access guard. The script is intended to run exclusively from the command line, but the guard condition !php_sapi_name() === 'cli' never evaluates to true due to how PHP resolves operator precedence. The ! (logical NOT) operator binds more tightly than === (strict comparison), causing the expression to always evaluate to false, which means the die() statement never executes. As a result, the script is accessible via HTTP without authentication and will delete files from the server's temp directory while also disclosing the temp directory contents in its response. At time of publication, there are no publicly available patches.

    Published:Mar 31, 2026
    Last Modified:Apr 2, 2026
    EPS:Mar 31, 2026
    EPSS Score:0.00057
    CVSS Score:6.5

    Affected Products

    Vendor
    Wwbn
    Product
    Avideo

    Exploits

    https://github.com/WWBN/AVideo/security/advisories/GHSA-wwpw-hrx8-79r5

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

    CVE-2026-89257 (CVSS 5.3) — AVideo through 29.0 contains an insecure direct object reference (IDOR) vulnerability in objects/categoryDelet…
    CVE-2026-89256 (CVSS 9.3) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89255 (CVSS 9.3) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89254 (CVSS 9.3) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89253 (CVSS 9.3) — WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vul…
    CVE-2026-89252 (CVSS 7.1) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php wh…
    CVE-2026-89251 (CVSS 7.1) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ad impressions in plugin/AD_S…
    CVE-2026-89250 (CVSS 8.7) — WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains an unauthenticated file read vuln…
    CVE-2026-89249 (CVSS 9.3) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89248 (CVSS 6.9) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 is missing an authentication/authorization chec…

    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