What is CVE-2018-25269?

CVE-2018-25269 is a medium-severity vulnerability in Icewarp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-22.

How severe is CVE-2018-25269?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Icewarp

CVE-2018-25269

ICEWARP 10.3.4 and 11.0.0.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious HTML elements into emails by embedding base64-encoded payloads in object and embed tags. Attackers can craft emails contain…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (11.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Icewarp — versions 11.0.0.0
Icewarp Client — versions 10.3.4, 11.0.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

disclosure@vulncheck.com (Exploit, VDB Entry, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-25269?: CVE-2018-25269 is a medium-severity vulnerability in Icewarp, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-22.
How severe is CVE-2018-25269?: Medium severity. CVSS v3 base score is 6.1 out of 10.