CVE-2012-4382

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    CVE-2012-4382

    Published: 19 Oct 2017Last Modified: 10 Apr 2026

    Summary:

    Details: MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read a user block reason via a reblock attempt.

    References: http://www.openwall.com/lists/oss-security/2012/08/31/10, http://www.openwall.com/lists/oss-security/2012/08/31/6, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330, https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html, https://phabricator.wikimedia.org/T41823, http://www.openwall.com/lists/oss-security/2012/08/31/10, http://www.openwall.com/lists/oss-security/2012/08/31/6, http://www.openwall.com/lists/oss-security/2012/08/31/10, http://www.openwall.com/lists/oss-security/2012/08/31/6, https://lists.wikimedia.org/pipermail/mediawiki-announce/2012-August/000119.html, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330, https://phabricator.wikimedia.org/T41823

    Affected packages

    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