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    CVE-2026-39366

    WWBN AVideo is an open source video platform. In versions 26.0 and prior, the PayPal IPN v1 handler at plugin/PayPalYPT/ipn.php lacks transaction deduplication, allowing an attacker to replay a single legitimate IPN notification to repeatedly inflate their wallet balance and renew subscriptions. The newer ipnV2.php and webhook.php handlers correctly deduplicate via PayPalYPT_log entries, but the v1 handler was never updated and remains actively referenced as the notify_url for billing plans.

    Published:Apr 7, 2026
    Last Modified:Apr 22, 2026
    EPS:Apr 7, 2026
    EPSS Score:0.00016
    CVSS Score:6.5

    Affected Products

    Vendor
    Wwbn
    Product
    Avideo

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-89257 (CVSS 5.4) — AVideo through 29.0 contains an insecure direct object reference (IDOR) vulnerability in objects/categoryDelet…
    CVE-2026-89256 (CVSS 8.7) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89255 (CVSS 8.7) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89254 (CVSS 8.7) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89253 (CVSS 8.7) — WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vul…
    CVE-2026-89252 (CVSS 6.5) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php wh…
    CVE-2026-89251 (CVSS 6.5) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ad impressions in plugin/AD_S…
    CVE-2026-89250 (CVSS 7.5) — WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains an unauthenticated file read vuln…
    CVE-2026-89249 (CVSS 8.7) — AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerab…
    CVE-2026-89248 (CVSS 5.3) — 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