BIT-mediawiki-2023-3550

    Dashboard / Vulnerabilities / BIT-mediawiki-2023-3550

    BIT-mediawiki-2023-3550

    Published: 6 Mar 2024Last Modified: 20 May 2025
    Aliases:
    CVE-2023-3550

    Summary: Stored XSS leads to privilege escalation in MediaWiki v1.40.0

    Details: Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.

    References: https://fluidattacks.com/advisories/blondie/, https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html, https://www.debian.org/security/2023/dsa-5520, https://www.mediawiki.org/wiki/MediaWiki/, https://lists.fedoraproject.org/archives/list/[email protected]/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY/, https://nvd.nist.gov/vuln/detail/CVE-2023-3550

    Affected packages

    Package

    Name: mediawiki

    Purl: pkg:bitnami/mediawiki

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.40.0
    Fixed -1.40.1

    Affected versions

    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
    BIT-mediawiki-2023-3550 | CVE-DB