Document Title: =============== Wordpress Theme Dosimple v2.0 - XSS Web Vulnerability References (Source): ==================== https://www.vulnerability-lab.com/get_content.php?id=2251 Release Date: ============= 2020-05-07 Vulnerability Laboratory ID (VL-ID): ==================================== 2251 Common Vulnerability Scoring System: ==================================== 4 Vulnerability Class: ==================== Cross Site Scripting - Non Persistent Current Estimated Price: ======================== 500€ - 1.000€ Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a cross site web vulnerability in the Wordpress Theme Dosimple v2.0 web-application. Vulnerability Disclosure Timeline: ================================== 2020-05-07: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Exploitation Technique: ======================= Remote Severity Level: =============== Medium Authentication Type: ==================== Pre auth - no privileges User Interaction: ================= Low User Interaction Disclosure Type: ================ Independent Security Research Technical Details & Description: ================================ A non-persistent cross site scripting vulnerability has been discovered in the official Wordpress Theme Dosimple v2.0 web-application. The vulnerability allows remote attackers to inject own malicious script codes with non-persistent attack vector to compromise browser to web-application requests from the client-side. The cross site scripting vulnerabilities are located in the `s` parameter. The request method to inject the malicious script code is GET and the attack vector of the vulnerability is non-persistent on client-side. Successful exploitation of the vulnerability results in session hijacking, non-persistent phishing attacks, non-persistent external redirects to malicious source and non-persistent manipulation of affected application modules. Request Method(s): [+] GET Vulnerable Parameter(s): [+] s Proof of Concept (PoC): ======================= The non-persistent web vulnerability can be exploited by remote attackers without user account with low user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. PoC: Example https://localhost:8080/?s=<[NON-PERSISTENT CROSS SITE SCRIPTING!]> PoC: Exploitation https://localhost:8080/?s='">