What is CVE-2018-16324?

CVE-2018-16324 is a medium-severity vulnerability in Icewarp Mail Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-01.

How severe is CVE-2018-16324?

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

XSS in Icewarp Mail Server

CVE-2018-16324

In IceWarp Server 12.0.3.1 and before, there is XSS in the /webmail/ username field.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-09-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Icewarp Mail Server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cxsecurity.com/issue/WLB-2018080098 (Exploit, Third Party Advisory)
packetstormsecurity.com/files/148887/IceWarp-WebMail-12.0.3.1-Cross-Site-Script… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16324?: CVE-2018-16324 is a medium-severity vulnerability in Icewarp Mail Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-09-01.
How severe is CVE-2018-16324?: Medium severity. CVSS v3 base score is 6.1 out of 10.