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    CVE-2023-6621

    The POST SMTP WordPress plugin before 2.8.7 does not sanitise and escape the msg parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

    Published:Jan 3, 2024
    Last Modified:Jun 18, 2025
    EPS:Jan 3, 2024
    EPSS Score:0.0012
    CVSS Score:6.1

    Affected Products

    Vendor
    Wpexperts
    Product
    Post Smtp

    Exploits

    https://wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928https://wpscan.com/vulnerability/b49ca336-5bc2-4d72-a9a5-b8c020057928

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    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