GHSA-4vr7-m8p8-434h

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    GHSA-4vr7-m8p8-434h

    Published: 24 May 2022Last Modified: 19 May 2024

    Summary: MediaWiki Cross-site Scripting (XSS) vulnerability

    Details: In MediaWiki before 1.31.9 and 1.32.x through 1.34.x before 1.34.3, XSS related to jQuery can occur. The attacker creates a message with [javascript:payload xss] and turns it into a jQuery object with mw.message().parse(). The expected result is that the jQuery object does not contain an <a> tag (or it does not have a href attribute, or it's empty, etc.). The actual result is that the object contains an <a href ="javascript... that executes when clicked.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-25814, https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2020-25814.yaml, https://github.com/wikimedia/mediawiki, https://lists.fedoraproject.org/archives/list/[email protected]/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6, 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/T86738, https://www.mediawiki.org/wiki/ResourceLoader/Core_modules#mediawiki.jqueryMsg

    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-4vr7-m8p8-434h | CVE-DB