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TITLE:
MyBB Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA46951

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46951/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46951

RELEASE DATE:
2011-11-25

DISCUSS ADVISORY:
http://secunia.com/advisories/46951/#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/46951/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46951

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:
Some vulnerabilities have been reported in MyBB, where one has an
unknown impact and others can be exploited by malicious people to
conduct cross-site scripting and cross-site request forgery attacks.

1) An error related to an unparsed avatar in the buddy list exists.
No further information is currently available.

2) Input passed via the username is not properly sanitised 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.

3) The application allows users to perform certain actions via HTTP
requests without performing proper validity checks to verify the
requests. This can be exploited to e.g. change the language setting
when a logged-in user visits a specially crafted web page.

The vulnerabilities are reported in versions prior to 1.6.5.

SOLUTION:
Update to version 1.6.5.

PROVIDED AND/OR DISCOVERED BY:
3) Nathan Malcolm within a MyBB bug report

The vendor credits:
1) labrocca
2) Will G

ORIGINAL ADVISORY:
MyBB:
http://blog.mybb.com/2011/11/25/mybb-1-6-5-released-feature-update-security-maintenance-release/
http://dev.mybb.com/issues/1729

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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