MediaWiki: Cross-site scripting vulnerability — GLSA 200604-01

MediaWiki is vulnerable to a cross-site scripting attack that could allow arbitrary JavaScript code execution.

Affected packages

Package	www-apps/mediawiki on all architectures
Affected versions	< 1.4.15
Unaffected versions	>= 1.4.15

Background

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

Description

MediaWiki fails to decode certain encoded URLs correctly.

Impact

By supplying specially crafted links, a remote attacker could exploit this vulnerability to inject malicious HTML or JavaScript code that will be executed in a user's browser session in the context of the vulnerable site.

Workaround

There is no known workaround at this time.

Resolution

All MediaWiki users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-apps/mediawiki-1.4.15"

References

Release date
April 04, 2006

Latest revision
April 04, 2006: 01

Severity
low

Exploitable
remote

Bugzilla entries

127971