Exploitalert - Database of Exploits

LISTSERV 17 Reflected Cross Site Scripting (XSS)

CVE	Category	Price	Severity
CVE-2022-39195	CWE-79	Unknown	Medium

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2023-04-02

CPE
cpe:cpe:/a:listserv:listserv:17.0

CVSS	EPSS	EPSSP
CVSS:4.3/AV:N/AC:M/Au:N/C:N/I:P/A:N	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Confidentiality	None	C	There is no impact on the confidentiality of the system; the attacker does not gain the ability to read any data.
Availability	None	A	There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.

https://cxsecurity.com/ascii/WLB-2023040001

LISTSERV 17 Reflected Cross Site Scripting (XSS)

# Exploit Title: LISTSERV 17 - Reflected Cross Site Scripting (XSS) # Google Dork: inurl:/scripts/wa.exe # Date: 12/01/2022 # Exploit Author: Shaunt Der-Grigorian # Vendor Homepage: https://www.lsoft.com/ # Software Link: https://www.lsoft.com/download/listserv.asp # Version: 17 # Tested on: Windows Server 2019 # CVE : CVE-2022-39195 A reflected cross-site scripting (XSS) vulnerability in the LISTSERV 17 web interface allows remote attackers to inject arbitrary JavaScript or HTML via the "c" parameter. To reproduce, please visit http://localhost/scripts/wa.exe?TICKET=test&c=%3Cscript%3Ealert(1)%3C/script%3E (or whichever URL you can use for testing instead of localhost). The "c" parameter will reflect any value given onto the page. # Solution This vulnerability can be mitigated by going under "Server Administration" to "Web Templates" and editing the BODY-LCMD-MESSAGE web template. Change &+CMD; to &+HTMLENCODE(&+CMD;); .

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