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    CVE-2021-24807

    The Support Board WordPress plugin before 3.3.5 allows Authenticated (Agent+) users to perform Cross-Site Scripting attacks by placing a payload in the notes field, when an administrator or any authenticated user go to the chat the XSS will be automatically executed.

    Published:Nov 8, 2021
    Last Modified:Nov 21, 2024
    EPS:Nov 8, 2021
    EPSS Score:0.03097
    CVSS Score:5.4

    Affected Products

    Vendor
    Schiocco
    Product
    Support Board

    Exploits

    https://github.com/itsjeffersonli/CVE-2021-24807https://wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0https://github.com/itsjeffersonli/CVE-2021-24807https://wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0https://github.com/dldygnl/CVE-2021-24807

    Related CVEs

    CVE-2026-27395 (CVSS 9.8) — Unauthenticated Privilege Escalation in Support Board < 3.8.9 versions.…
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    CVE-2026-4816 (CVSS 4.8) — A Reflected Cross Site Scripting (XSS) vulnerability has been found in Support Board v3.7.7. This vulnerabilit…
    CVE-2025-60182 (CVSS 7.1) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Schiocco…
    CVE-2025-54027 (CVSS 7.1) — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Schiocco…
    CVE-2025-54031 (CVSS 8.1) — Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulner…
    CVE-2025-4855 (CVSS 9.8) — The Support Board plugin for WordPress is vulnerable to unauthorized access/modification/deletion of data due …
    CVE-2025-4828 (CVSS 9.8) — The Support Board plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path …
    CVE-2021-24823 (CVSS 8.1) — The Support Board WordPress plugin before 3.3.6 does not have any CSRF checks in actions handled by the includ…

    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