TITLE: MyBB User Control Panel Cross-Site Request Forgery SECUNIA ADVISORY ID: SA18603 VERIFY ADVISORY: http://secunia.com/advisories/18603/ CRITICAL: Less critical IMPACT: Hijacking WHERE: >From remote SOFTWARE: MyBB (formerly MyBulletinBoard) 1.x http://secunia.com/product/4479/ DESCRIPTION: Roozbeh Afrasiabi has discovered a vulnerability in MyBB, which can be exploited by malicious people to conduct cross-site request forgery attacks. The vulnerability is caused due to the application allowing users to perform certain actions via HTTP POST requests without performing any validity checks to verify the user's request. This can e.g. be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious user data is viewed. Example: Input passed to the "notepad" parameter when editing the personal pad and the "signature" parameter when editing the signature in the user control panel. The vulnerability has been confirmed in version 1.02. Other versions may also be affected. SOLUTION: Edit the source code to ensure that HTTP requests are properly validated. PROVIDED AND/OR DISCOVERED BY: Roozbeh Afrasiabi ORIGINAL ADVISORY: http://kapda.ir/advisory-241.html ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/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. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------