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TITLE:
MediaWiki "uselang" Cross-Site Scripting Vulnerability

SECUNIA ADVISORY ID:
SA49484

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49484/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49484

RELEASE DATE:
2012-06-14

DISCUSS ADVISORY:
http://secunia.com/advisories/49484/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/49484/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=49484

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in MediaWiki, which can be
exploited by malicious people to conduct cross-site scripting
attacks.

Input passed via the "uselang" parameter to index.php/Main_page is
not properly sanitised in the "outputPage()" function in
includes/SkinTemplate.php before being returned to the user. This can
be exploited to execute arbitrary HTML and script code in a user's
browser session in context of an affected site.

The vulnerability is reported in versions prior to 1.17.5, 1.18.4,
and 1.19.1.

SOLUTION:
Update to version 1.17.5, 1.18.4, or 1.19.1.

PROVIDED AND/OR DISCOVERED BY:
Reported in a MediaWiki bug ticket by Chris Steipp.

ORIGINAL ADVISORY:
http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-June/000116.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-June/000117.html
http://lists.wikimedia.org/pipermail/mediawiki-announce/2012-June/000118.html
https://www.mediawiki.org/wiki/Release_notes/1.17
https://www.mediawiki.org/wiki/Release_notes/1.18
https://www.mediawiki.org/wiki/Release_notes/1.19

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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