Hello. Digital Security Research Group [DSecRG] Advisory #DSECRG-08-006 Application: Nucleus CMS Versions Affected: 3.31 Vendor URL: http://nucleuscms.org Bugs: XSS Injestion in URL Exploits: YES Reported: 16.01.2008 Vendor response: 18.01.2008 Date of Public Advisory: 29.01.2008 Authors: Alexandr Polyakov, Stas Svistunovich Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru) Description *********** Linked XSS vulnerability found in action.php, attacker can inject XSS in URL string: Example: http://[server]/[installdir]/action.php/"><script>alert('DSecRG XSS')</script> Fix Information *************** TikiWiki was altered to fix this flaw on 29 january 2008. Updated version (3.32) can be downloaded here: http://prdownloads.sourceforge.net/nucleuscms/nucleus3.32.zip?download About ***** Digital Security is leading IT security company in Russia, providing information security consulting, audit and penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS standards. Digital Security Research Group focuses on web application and database security problems with vulnerability reports, advisories and whitepapers posted regularly on our website. Contact: research [at] dsec [dot] ru http://www.dsec.ru (in Russian) -- mailto:research (at) dsec (dot) ru [email concealed]