CVE-2019-15501

MEDIUM NUCLEI

LISTSERV < 16.5-2018a - Reflected Cross-Site Scripting via OK Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-15501. PoCs published by MTK. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates a reflected XSS vulnerability in LSoft ListServ versions prior to 16.5-2018a. The payload is injected via the 'OK' parameter in the URL, triggering JavaScript execution in the context of the victim's browser.

Description

Reflected cross site scripting (XSS) in L-Soft LISTSERV before 16.5-2018a exists via the /scripts/wa.exe OK parameter.

Exploits (1)

exploitdb WORKING POC
by MTK · textwebappswindows
https://www.exploit-db.com/exploits/47302

This exploit demonstrates a reflected XSS vulnerability in LSoft ListServ versions prior to 16.5-2018a. The payload is injected via the 'OK' parameter in the URL, triggering JavaScript execution in the context of the victim's browser.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: LSoft ListServ < 16.5-2018a
No auth needed
Prerequisites: Victim must click on a crafted URL or visit a malicious page
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

L-Soft LISTSERV <16.5-2018a - Cross-Site Scripting
MEDIUMVERIFIEDby LogicalHunter,arafatansari
Shodan: http.html:"LISTSERV" || http.html:"listserv"
FOFA: body="listserv"

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/47302
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/154202/LSoft-ListServ-Cross-Site-Scripting.html

Scores

CVSS v3 6.1
EPSS 0.0818
EPSS Percentile 94.1%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
lsoft/listserv < 16.5-2018a
Published Aug 26, 2019
Tracked Since Feb 18, 2026