CVE-2020-18723
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an...
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.
- Record
CVE-2020-18723- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.
- Record
CVE-2020-18723- Updated
- 2026-11-02
EUVDEUVD-2020-10640 No score
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.
- Record
EUVD-2020-10640- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7c3h-wh3g-298c No score
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an...
Stored cross-site scripting (XSS) in file attachment field in MDaemon webmail 19.5.5 allows an attacker to execute code on the email recipient side while forwarding an email to perform potentially malicious activities.
- Record
GHSA-7c3h-wh3g-298c- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Alt-N MDaemon webmail 20.0.0 - 'file name' Stored Cross Site Scripting (XSS) | 2021-02-08 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-18723 is a medium vulnerability (CVSS 5.4) in Altn Mdaemon Webmail, published February 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 3.96%, the 90th percentile. No source names a fixed version.