---------------------------------------------------------------------- A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI has been released. The new version includes many new and advanced features, which makes it even easier to stay patched. Download and test it today: https://psi.secunia.com/ Read more about this new version: https://psi.secunia.com/?page=changelog ---------------------------------------------------------------------- TITLE: WordPress MU File Upload and Security Bypass SECUNIA ADVISORY ID: SA28789 VERIFY ADVISORY: http://secunia.com/advisories/28789/ CRITICAL: Moderately critical IMPACT: Security Bypass, System access WHERE: >From remote SOFTWARE: WordPress MU 1.x http://secunia.com/product/14628/ DESCRIPTION: Alexander Concha has reported a vulnerability in WordPress MU, which can be exploited by malicious users to bypass certain security restrictions and to compromise a vulnerable system. The wp-admin/options.php script does not properly restrict changes to options. This can be exploited to e.g. upload and execute arbitrary PHP code. Successful exploitation requires valid user credentials and having "manage_options" capabilities. Successful exploitation for file uploading also requires "upload_files" capabilities. The vulnerability is reported in version 1.3.1. Prior versions may also be affected. SOLUTION: Update to version 1.3.2 or later. PROVIDED AND/OR DISCOVERED BY: Alexander Concha ORIGINAL ADVISORY: WordPress MU: http://mu.wordpress.org/forums/topic.php?id=7534&page&replies=1 Alexander Concha: http://www.buayacorp.com/files/wordpress/wordpress-mu-options-overwrite.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 ----------------------------------------------------------------------