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MediaWiki: Multiple vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200502-33 / mediawiki
Release Date February 28, 2005
Latest Revision February 28, 2005: 01
Impact low
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
www-apps/mediawiki < 1.3.11 >= 1.3.11 All supported architectures

Related bugreports: #80729, #82954


MediaWiki is vulnerable to cross-site scripting, data manipulation and security bypass attacks.

2.  Impact Information


MediaWiki is a collaborative editing software, used by big projects like Wikipedia.


A security audit of the MediaWiki project discovered that MediaWiki is vulnerable to several cross-site scripting and cross-site request forgery attacks, and that the image deletion code does not sufficiently sanitize input parameters.


By tricking a user to load a carefully crafted URL, a remote attacker could hijack sessions and authentication cookies to inject malicious script code that will be executed in a user's browser session in context of the vulnerable site, or use JavaScript submitted forms to perform restricted actions. Using the image deletion flaw, it is also possible for authenticated administrators to delete arbitrary files via directory traversal.

3.  Resolution Information


There is no known workaround at this time.


All MediaWiki users should upgrade to the latest available version:

Code Listing 3.1: Resolution

# emerge --sync 
# emerge --ask --oneshot --verbose ">=www-apps/mediawiki-1.3.11"

4.  References


Page updated February 28, 2005

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