What is CVE-2019-19266?

CVE-2019-19266 is a medium-severity vulnerability in Icewarp Mail Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-01-06.

How severe is CVE-2019-19266?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Icewarp Mail Server

CVE-2019-19266

IceWarp WebMail Server 12.2.0 and 12.1.x before 12.2.1.1 (and probably earlier versions) allows XSS (issue 2 of 2) in notes for objects.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Icewarp Mail Server

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

seclists.org/fulldisclosure/2020/Jan/1 (Exploit, Mailing List, Third Party Advisory)
www.redteam-pentesting.de/en/advisories/rt-sa-2019-016/-icewarp-cross-site-scri… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19266?: CVE-2019-19266 is a medium-severity vulnerability in Icewarp Mail Server, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-01-06.
How severe is CVE-2019-19266?: Medium severity. CVSS v3 base score is 5.4 out of 10.