TITLE:
MediaWiki "images" Arbitrary Script Upload and Execution
Vulnerability

SECUNIA ADVISORY ID:
SA13419

VERIFY ADVISORY:
http://secunia.com/advisories/13419/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
MediaWiki 1.x
http://secunia.com/product/2546/

DESCRIPTION:
A vulnerability has been reported in MediaWiki, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to insufficient validation of files
uploaded to the "images" directory located inside the web root. This
can be exploited to upload and execute arbitrary malicious scripts.

The vulnerability has been reported in version 1.3.8. Prior versions
may also be affected.

SOLUTION:
Update to version 1.3.9.
http://wikipedia.sourceforge.net/

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

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