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    CVE-2021-20809

    Cross-site scripting vulnerability in Create screens of Entry, Page, and Content Type of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series), Movable Type Premium 1.44 and earlier, and Movable Type Premium Advanced 1.44 and earlier) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

    Published:Aug 26, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 26, 2021
    EPSS Score:0.00347
    CVSS Score:6.1

    Affected Products

    Vendor
    Sixapart
    Product
    Movable Type

    Exploits

    No exploit reference

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    CVE-2022-45122 (CVSS 6.1) — Cross-site scripting vulnerability in Movable Type Movable Type 7 r.5301 and earlier (Movable Type 7 Series), …
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    CVE-2022-38078 (CVSS 9.8) — Movable Type XMLRPC API provided by Six Apart Ltd. contains a command injection vulnerability. Sending a speci…
    CVE-2020-5669 (CVSS 5.4) — Cross-site scripting vulnerability in Movable Type Movable Type Premium 1.37 and earlier and Movable Type Prem…
    CVE-2021-20837 (CVSS 9.8) — Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Seri…
    CVE-2021-20815 (CVSS 6.1) — Cross-site scripting vulnerability in Edit Boilerplate screen of Movable Type (Movable Type 7 r.4903 and earli…

    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