Document Title: =============== WP Good News Themes - Client Side Cross Site Scripting Web Vulnerability References (Source): ==================== http://ift.tt/1UtNXYK Release Date: ============= 2016-02-29 Vulnerability Laboratory ID (VL-ID): ==================================== 1771 Common Vulnerability Scoring System: ==================================== 3 Product & Service Introduction: =============================== http://www.momizat.net/ http://ift.tt/1hHkZni Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a client-side cross site scripting web vulnerability in the official Wordpress Good News Themes. Vulnerability Disclosure Timeline: ================================== 2016-02-29: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Momizat Inc Product: Good News - Themes (Web-Application) 2016 Q1 Exploitation Technique: ======================= Remote Severity Level: =============== Medium Technical Details & Description: ================================ Multiple client-side web vulnerabilities has been discovered in the official Wordpress Good News Themes wordpress web-application. The client-side validation issue allows remote attacker to inject client-side script codes to compromise browser to application requests. The vulnerability is located in the `s` value of the `Good News themes` module. Remote attackers are able to inject client-side script code to the vulnerable index GET method request. The `s` value is wrong encoded and not filtered by the regular validation. The attack vector of the issue is client-side and the request method to execute is GET. The security risk of the client-side vulnerabilities is estimated as medium with a cvss (common vulnerability scoring system) count of 3.0. Exploitation of the security vulnerability requires no privileged web-application user account and low user interaction. Successful exploitation of the vulnerabilities results in session hijacking, non-persistent phishing, non-persistent external redirects, non-persistent load of malicious script codes or non-persistent web module context manipulation. Request Method(s): [+] GET Vulnerable Module(s): [+] EGood News - Themes Vulnerable Parameter(s): [+] s Proof of Concept (PoC): ======================= The client-side cross site scripting web vulnerability can be exploited by remote attackers without privileged web-application user account and with low user interaction (click|link). For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. PoC: Example http://ift.tt/1oSBx0w CROSS SITE SCRIPTING VULNERABILITY!] PoC: Exploitation http://ift.tt/1QfUDGF">http://ift.tt/1QfUDGF">http://ift.tt/1oSBx0y">http://ift.tt/1QfUDGF">http://ift.tt/1QfUBPf">http://ift.tt/1QfUDGF">http://ift.tt/1oSBySp">http://ift.tt/1QfUDGF">http://ift.tt/1QfUBPh">Solution - Fix & Patch: ======================= The vulnerability can be patched by a secure parse and encode of the vulnerable `s` value. Restrict the input and disallow usage of special chars in the parameter GET method request to prevent an execution of client-side script codes. Security Risk: ============== The security risk of the client-side cross site scripting web vulnerability in the good news themes is estimated as medium. (CVSS 3.0) Credits & Authors: ================== Milad Hacking - (milad.hacking.blackhat@Gmail.com) [http://fullsecurity.org] Thanks: iliya Norton - Milad Hacking - Mohamad Ghasemi- irhblackhat - Distr0watch - N3TC4T - Ac!D - Mr.G}{o$t - S4livan - MRS4JJ4D - SeCrEt_HaCkEr , Nazila Blackhat , Bl4ck_MohajeM, Xodiak , Ehsan Ice aka Ehsan Hosseini (EhsanSec.ir) Disclaimer & Information: ========================= The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. 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