GHSA-h8qx-mj6v-2934

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    GHSA-h8qx-mj6v-2934

    Published: 24 May 2022Last Modified: 19 May 2024

    Summary: MediaWiki Cross-site Scripting (XSS) vulnerability

    Details: An issue was discovered in MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3. The non-jqueryMsg version of mw.message().parse() doesn't escape HTML. This affects both message contents (which are generally safe) and the parameters (which can be based on user input). (When jqueryMsg is loaded, it correctly accepts only whitelisted tags in message contents, and escapes all parameters. Situations with an unloaded jqueryMsg are rare in practice, but can for example occur for Special:SpecialPages on a wiki with no extensions installed.)

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-25828, https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25828.yaml, https://github.com/wikimedia/mediawiki, https://lists.fedoraproject.org/archives/list/[email protected]/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6, https://lists.wikimedia.org/pipermail/mediawiki-announce, https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html, https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html, https://phabricator.wikimedia.org/T115888

    Affected packages

    Package

    Name: mediawiki/core

    Purl: pkg:composer/mediawiki/core

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.31.0
    Fixed -1.31.9

    Affected versions

    1.31.0
    1.31.1
    1.31.2
    1.31.3
    1.31.4
    1.31.5
    1.31.6
    1.31.7
    1.31.8

    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
    GHSA-h8qx-mj6v-2934 | CVE-DB