Cross-Site Scripting Vulnerability in ICEWARP Email Client
CVE-2018-25269

5.1MEDIUM

Key Information:

Vendor

Icewarp

Status
Icewarp Client
Vendor
CVE Published:
22 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25269?

ICEWARP version 11.0.0.0 is susceptible to a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious HTML content into emails. By utilizing base64-encoded payloads embedded in object and embed tags, attackers can craft emails containing data URIs that execute embedded scripts when viewed by recipients. This exploitation can lead to compromised user sessions and potential theft of sensitive information.

Affected Version(s)

ICEWARP Client 10.3.4

ICEWARP Client 11.0.0.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25269 - Proof of Concept

References

https://www.exploit-db.com/exploits/45974
exploit
http://www.icewarp.com/
product
https://www.vulncheck.com/advisories/icewarp-cross-site-s...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Usman Saeed
.