CVE-2026-86188

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    CVE-2026-86188

    Published: 5 Sept 2026Last Modified: 10 Sept 2026

    Summary: AVideo YPTSocket Plugin Unauthenticated Cross-Site Scripting

    Details: AVideo with YPTSocket plugin enabled contains a cross-site scripting vulnerability allowing unauthenticated attackers to execute arbitrary JavaScript in other users' browsers via the websocket callback mechanism. Attackers can send crafted socket messages with callback names resolving to global functions like avideoConfirmHTML that accept untrusted data and assign it to innerHTML, achieving script execution in the victim's origin without authentication or user interaction.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86188.json, https://github.com/WWBN/AVideo/security/advisories/GHSA-xpx7-h2x7-59qq, https://nvd.nist.gov/vuln/detail/CVE-2026-86188, https://www.vulncheck.com/advisories/avideo-yptsocket-plugin-unauthenticated-cross-site-scripting

    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-2026-86188 | CVE-DB