CVE-2020-18724

MEDIUM

MDaemon Webmail < 20.0.1 - Authenticated Stored Cross-Site Scripting in Contact Name Field

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-18724. PoCs published by Kailash Bohara.

AI-analyzed exploit summary This exploit describes a stored XSS vulnerability in Alt-N MDaemon webmail versions prior to 20.0.0, where the 'Contact name' field in the distribution list is vulnerable to XSS via a payload like <img src=x onerror=alert(1)>.

Description

Authenticated stored cross-site scripting (XSS) in the contact name field in the distribution list of MDaemon webmail 19.5.5 allows an attacker to executes code and perform a XSS attack while opening a contact list.

Exploits (1)

exploitdb WRITEUP
by Kailash Bohara · textwebappswindows
https://www.exploit-db.com/exploits/49536

This exploit describes a stored XSS vulnerability in Alt-N MDaemon webmail versions prior to 20.0.0, where the 'Contact name' field in the distribution list is vulnerable to XSS via a payload like <img src=x onerror=alert(1)>.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Alt-N MDaemon webmail < 20.0.0
Auth required
Prerequisites: Access to the webmail interface · Ability to create or edit a distribution list
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
http://kailashbohara.com.np/blog/2020/07/15/mdaemon-stored-xss

Scores

CVSS v3 5.4
EPSS 0.0319
EPSS Percentile 86.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
altn/mdaemon_webmail < 20.0.1
Published Feb 03, 2021
Tracked Since Feb 18, 2026