CVE-2023-5548

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    CVE-2023-5548

    Published: 9 Nov 2023Last Modified: 12 Aug 2026

    Summary: Moodle: cache poisoning risk with endpoint revision numbers

    Details: Stronger revision number limitations were required on file serving endpoints to improve cache poisoning protection.

    References: http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-77846, https://git.moodle.org, https://moodle.org/mod/forum/discuss.php?d=451589, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5548.json, https://nvd.nist.gov/vuln/detail/CVE-2023-5548, https://bugzilla.redhat.com/show_bug.cgi?id=2243449

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -71b514944365362ceaac1018bf7970c2b080c0f2

    Affected versions

    v4.1.5
    v4.1.4
    v4.1.3
    v4.1.2
    v4.1.1
    v4.1.0

    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-2023-5548 | CVE-DB