CVE-2021-43558

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    CVE-2021-43558

    Published: 22 Nov 2021Last Modified: 8 Jul 2026

    Summary:

    Details: A flaw was found in Moodle in versions 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions. A URL parameter in the filetype site administrator tool required extra sanitizing to prevent a reflected XSS risk.

    References: https://bugzilla.redhat.com/show_bug.cgi?id=2021515, https://moodle.org/mod/forum/discuss.php?d=429097

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v3.11.3
    v3.11.1
    v3.11.2
    v3.11.0

    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-2021-43558 | CVE-DB