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If you are a U.S. company, you may be qualified for a tax break for your software purchases. Learn more at:
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TITLE:
MyBB Recent Topics on Index page Plugin "subject" Script Insertion
Vulnerability

SECUNIA ADVISORY ID:
SA43473

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43473/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43473

RELEASE DATE:
2011-03-13

DISCUSS ADVISORY:
http://secunia.com/advisories/43473/#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/43473/

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=43473

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 discovered in the Recent Topics on Index
page plugin for MyBB, which can be exploited by malicious users to
conduct script insertion attacks.

Input passed via the "subject" parameter to newthread.php (when
"action" is set to "do_newthread") is not properly sanitised in
inc/plugins/recenttopicsindex.php before being displayed to the user.
This can be exploited to insert arbitrary HTML and script code, which
will be executed in a user's browser session in context of an
affected site when the malicious thread is being viewed.

The vulnerability is confirmed in version 1.0. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Xinapse

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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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.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

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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