What is CVE-2018-19206?

CVE-2018-19206 is a medium-severity vulnerability in Roundcube Webmail, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-12.

How severe is CVE-2018-19206?

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

XSS in Roundcube Webmail

CVE-2018-19206

steps/mail/func.inc in Roundcube before 1.3.8 has XSS via crafted use of <svg><style>, as demonstrated by an onload attribute in a BODY element, within an HTML attachment.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.602 (99.0th percentile) — read the EPSS interpretation.

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.

Affected products

Roundcube Webmail
Debian Debian_linux — versions 9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Release Notes)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2018-19206?: CVE-2018-19206 is a medium-severity vulnerability in Roundcube Webmail, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-11-12.
How severe is CVE-2018-19206?: Medium severity. CVSS v3 base score is 6.1 out of 10.